Hi All. I have recently got a Jetbot and am running a demo. Road Following and Collision avoidance can be operated separately.

I want to make a combination that stops when there is an object during Road Following. It doesn't work even if the two codes are combined, so I would like to know how you can do it.

I'm not good at English. I'm sorry if it's hard to understand.

Hi!

I have finished my jetbot now and trying to run the Basic Motion notebook. I have successfully imported Robot class:

from jetbot import Robot

but when I run

robot = Robot()

I got the following error:

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
<ipython-input-6-b418ad9f6ab3> in <module>
----> 1 robot = Robot()

/usr/local/lib/python3.6/dist-packages/jetbot-0.3.0-py3.6.egg/jetbot/robot.py in __init__(self, *args, **kwargs)
     20     def __init__(self, *args, **kwargs):
     21         super(Robot, self).__init__(*args, **kwargs)
---> 22         self.motor_driver = Adafruit_MotorHAT(i2c_bus=self.i2c_bus)
     23         self.left_motor = Motor(self.motor_driver, channel=self.left_motor_channel, alpha=self.left_motor_alpha)
     24         self.right_motor = Motor(self.motor_driver, channel=self.right_motor_channel, alpha=self.right_motor_alpha)

/usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_MotorHAT_Motors.py in __init__(self, addr, freq, i2c, i2c_bus)
    229         self.motors = [ Adafruit_DCMotor(self, m) for m in range(4) ]
    230         self.steppers = [ Adafruit_StepperMotor(self, 1), Adafruit_StepperMotor(self, 2) ]
--> 231         self._pwm = PWM(addr, debug=False, i2c=i2c, i2c_bus=i2c_bus)
    232         self._pwm.setPWMFreq(self._frequency)
    233 

/usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_PWM_Servo_Driver.py in __init__(self, address, debug, i2c, i2c_bus)
     57         self.i2c = get_i2c_device(address, i2c, i2c_bus)
     58         logger.debug("Reseting PCA9685 MODE1 (without SLEEP) and MODE2")
---> 59         self.setAllPWM(0, 0)
     60         self.i2c.write8(self.__MODE2, self.__OUTDRV)
     61         self.i2c.write8(self.__MODE1, self.__ALLCALL)

/usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_PWM_Servo_Driver.py in setAllPWM(self, on, off)
     93     def setAllPWM(self, on, off):
     94         "Sets a all PWM channels"
---> 95         self.i2c.write8(self.__ALL_LED_ON_L, on & 0xFF)
     96         self.i2c.write8(self.__ALL_LED_ON_H, on >> 8)
     97         self.i2c.write8(self.__ALL_LED_OFF_L, off & 0xFF)

/usr/local/lib/python3.6/dist-packages/Adafruit_GPIO-1.0.3-py3.6.egg/Adafruit_GPIO/I2C.py in write8(self, register, value)
    114         """Write an 8-bit value to the specified register."""
    115         value = value & 0xFF
--> 116         self._bus.write_byte_data(self._address, register, value)
    117         self._logger.debug("Wrote 0x%02X to register 0x%02X",
    118                      value, register)

/usr/local/lib/python3.6/dist-packages/Adafruit_PureIO-0.2.3-py3.6.egg/Adafruit_PureIO/smbus.py in write_byte_data(self, addr, cmd, val)
    254         # Send the data to the device.
    255         self._select_device(addr)
--> 256         self._device.write(data)
    257 
    258     def write_word_data(self, addr, cmd, val):

OSError: [Errno 121] Remote I/O error

Could you please help? Thanks!

Hello, I flashed new release of pre-built JetBot SD card image for Jetson Nano 4GB (jetbot-043_nano-4gb-jp45.zip) and it doesn't boot. I read issue #385 and tried to boot with original nvidia image but it doesn't boot again and I have no Nvidia logo displayed. After that none of my different versions images don't boot . Before this incident my Jetson Nano had worked correctly. How to back my Jetson Nano to work?

Hi is it possible to make a Jetbot 4whel drive?

I have tared down my old robot project and tried to make it a Jetbot. now it runs with only 2wheels.

If its possible, where do I find necessary information to rewrite the program?

Hi,

I'm trying to get a camera module V1.3 working and struggling a little bit right now. The camera isn't showing up as '/dev/video0'. I'm using the default Jetson image (not the one specific to the jetbot project). I was wondering, are there specific packages I should install to make this work? Does the Jetson only work with the camera module V2?

This issue is meant to help Chinese devs to buy the materials of JetBot in China. I'll keep updating it, any help is welcome.

Its appreciate leaving the issue open for a while, thanks.

中国区购买 JetBot 的零件比较麻烦，所以整理了一个可以在国内购买的列表，欢迎一起更新汇总。

https://github.com/unbug/NVIDIA-JetBot-Diy/wiki

Hi guys. It is my first time talking to people on githubs. As I have got lots of help from github, I would like to share my case how I made it to work.

When I followed the instructions in Road following of Jetbot curriculum ,it couldn't get information as fast as the robot goes. I found out that the process of robot is little bit slow. Then I tried to go slooooowly and another problem has occurred. The motor provided was not strong enough to go slowly. (not enough Toque problem)

And we tried to go and stop to manage the speed. (if there were imu in it, we could control the robot with the pid or other feedback control but ,,, no) And here below is the code for the 'go and stop' .

Anyone who wants to check if the data collected works fine or not, you can try to move the robot really slow with this code, and check for the deep-learning trained model.

angle = 0.0
angle_last = 0.0
count_motor = 0
def execute(change):
    global angle, angle_last, count_motor
    image = change['new']
    xy = model(preprocess(image)).detach().float().cpu().numpy().flatten()
    x = xy[0]
    y = (0.5 - xy[1]) / 2.0
    
    x_slider.value = x
    y_slider.value = y
    
    speed_slider.value = speed_gain_slider.value
    
    angle = np.arctan2(x, y)
    pid = angle * steering_gain_slider.value + (angle - angle_last) * steering_dgain_slider.value
    angle_last = angle
    
    steering_slider.value = pid + steering_bias_slider.value
   
    if count_motor >2:
        robot.left_motor.value = max(min(speed_slider.value + steering_slider.value, 1.0)*0.95, 0.0)
        robot.right_motor.value = max(min(speed_slider.value - steering_slider.value, 1.0), 0.0)
        count_motor = 0
    else :
        robot.left_motor.value = 0
        robot.right_motor.value = 0
        count_motor = count_motor + 1

        
execute({'new': camera.value})

Gain value :

speed_gain_slider = ipywidgets.FloatSlider(min=0.25, max=1.0, step=0.01, description='speed gain')
steering_gain_slider = ipywidgets.FloatSlider(min=0.0, max=1.0, step=0.01, value=0.05, description='steering gain')
steering_dgain_slider = ipywidgets.FloatSlider(min=0.0, max=0.5, step=0.001, value=0.0, description='steering kd')
steering_bias_slider = ipywidgets.FloatSlider(min=-0.3, max=0.3, step=0.01, value=0.0, description='steering bias')

Hi All,

I have recently got a JetBot kit and was able to get assembled and software installed. The examples run fine, but just seem a bit too sluggish compared to the videos linked in the Github Examples page.

For reference, I followed the instruction from https://github.com/NVIDIA-AI-IOT/jetbot/wiki/software-setup and setup everything using the jetbot_image_v0p4p0.zip.

However, I am not sure if it is the Jupyter Lab/Notebook which are slow or my routers or something with the JetBot, it just seems like there is significant delay (~1 second) in the camera video stream and also the control responsiveness of the JetBot.

Consequently, it is unable to avoid obstacles reliably, nor track an object reliably. For obstacle avoidance, it often bumps into the obstacles first, then react 1-2 seconds later and starts turning left. For object tracking, the gain had to be tuned to be much lower in order to avoid overshoot.

Therefore, I was wondering if there is anything I can try to help improve the performance of the JetBot / Jetson Nano. Any advice or suggestions is appreciated.

Hi Im suddenly getting this error when running robot.stop():

Error in atexit._run_exitfuncs:
Traceback (most recent call last):
 File "/usr/local/lib/python3.6/dist-packages/jetbot-0.3.0-py3.6.egg/jetbot/motor.py", line 60, in _release
   self._motor.disable()
AttributeError: 'Motor' object has no attribute '_motor'

Any suggestions on how to fix?

In Teleoperation, first to create gamepad controller, when I execute first cell code, there is no Controller is shown, I tried several times, always failed !!! Gamepad is connected and the index is '1'

` import ipywidgets.widgets as widgets

controller = widgets.Controller(index=1) # replace with index of your controller

display(controller) `

I have assembled my jetbot with all the recommended hardware, including a Raspberry Pi Camera V2. The jetbot works and I have been able to follow the examples provided. Unfortunately, most of the times the camera is needed, the notebook fails to activate it. The instruction that creates trouble is "camera = Camera.instance()". When I try to run this cell, jupyter enters Busy mode and never proceeds. This is true most of the times. Sometimes the instance is created successfully and I am able to proceed. This is also true after a fresh reboot. Any suggestions as to what might be wrong?

Hey sorry this is probably not the right place to ask this question and its stupid, but I couldn't find anywhere else to find the products or substitutes. I am very late to finding out about this, but it's cool and I was hoping to build it once I can find substitutes for part links are updated. Thanks!

Why package in jetpack 4.3 is same in jupyterlab but newer jetpack doesn't same? What should I do to make package in newer jetpack is same in jupyter?

The first time I opened the jetbot I was prompted to set up a password, which I did not do. Then the device went into sleep mode and when I try to open it again it is locked and requires a password. I tried some default passwords I found online such as "ubuntu", "nvidia" and "jetbot" but non of them worked.

Any ideas on how to solve it?

➜  ~ python
Python 3.6.9 (default, Jun 29 2022, 11:45:57) 
[GCC 8.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import jetbot
[1]    8661 illegal hardware instruction (core dumped)  python
➜  ~

Hello, engineer, I'm following the official operation manual【 https://jetbot.org/master/reference/docker_tips.html 】

When running to step 5 `cd docker

./enable.sh`

How can I solve the following errors [email protected]:~/下载/jetbot$ ./docker/enable.sh ./docker/enable.sh: 行 1: configure.sh: No such file or directory ./docker/enable.sh: 行 11: ./display/enable.sh: No such file or directory ./docker/enable.sh: 行 12: ./jupyter/enable.sh: No such file or directory

We look forward to your reply

[ 50%] Building CXX object jetbot/ssd_tensorrt/CMakeFiles/ssd_tensorrt.dir/FlattenConcat.cpp.o
cd....../build/jetbot/ssd_tensorrt && /usr/bin/c++  -Dssd_tensorrt_EXPORTS -I/usr/local/cuda/include  -O3 -DNDEBUG -fPIC   -o CMakeFiles/ssd_tensorrt.dir/FlattenConcat.cpp.o -c....../jetbot/ssd_tensorrt/FlattenConcat.cpp
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:63:9: error: looser throw specifier for ‘virtual int FlattenConcat::getNbOutputs() const’
     int getNbOutputs() const override
         ^~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:469:21: error:   overriding ‘virtual int32_t nvinfer1::IPluginV2::getNbOutputs() const noexcept’
     virtual int32_t getNbOutputs() const noexcept = 0;
                     ^~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:69:10: error: looser throw specifier for ‘virtual nvinfer1::Dims FlattenConcat::getOutputDimensions(int, const Dims*, int)’
     Dims getOutputDimensions(int index, const Dims* inputs, int nbInputDims) override
          ^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:486:18: error:   overriding ‘virtual nvinfer1::Dims nvinfer1::IPluginV2::getOutputDimensions(int32_t, const Dims*, int32_t) noexcept’
     virtual Dims getOutputDimensions(int32_t index, Dims const* inputs, int32_t nbInputDims) noexcept = 0;
                  ^~~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:92:9: error: looser throw specifier for ‘virtual int FlattenConcat::initialize()’
     int initialize() override
         ^~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:558:21: error:   overriding ‘virtual int32_t nvinfer1::IPluginV2::initialize() noexcept’
     virtual int32_t initialize() noexcept = 0;
                     ^~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:100:10: error: looser throw specifier for ‘virtual void FlattenConcat::terminate()’
     void terminate() override
          ^~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:572:18: error:   overriding ‘virtual void nvinfer1::IPluginV2::terminate() noexcept’
     virtual void terminate() noexcept = 0;
                  ^~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:107:12: error: looser throw specifier for ‘virtual size_t FlattenConcat::getWorkspaceSize(int) const’
     size_t getWorkspaceSize(int maxBatchSize) const override
            ^~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:588:20: error:   overriding ‘virtual size_t nvinfer1::IPluginV2::getWorkspaceSize(int32_t) const noexcept’
     virtual size_t getWorkspaceSize(int32_t maxBatchSize) const noexcept = 0;
                    ^~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:113:9: error: ‘int FlattenConcat::enqueue(int, const void* const*, void**, void*, cudaStream_t)’ marked ‘override’, but does not override
     int enqueue(int batchSize, const void* const* inputs, void** outputs, void*, cudaStream_t stream) override
         ^~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:135:12: error: looser throw specifier for ‘virtual size_t FlattenConcat::getSerializationSize() const’
     size_t getSerializationSize() const override
            ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:620:20: error:   overriding ‘virtual size_t nvinfer1::IPluginV2::getSerializationSize() const noexcept’
     virtual size_t getSerializationSize() const noexcept = 0;
                    ^~~~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:144:10: error: looser throw specifier for ‘virtual void FlattenConcat::serialize(void*) const’
     void serialize(void* buffer) const override
          ^~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:635:18: error:   overriding ‘virtual void nvinfer1::IPluginV2::serialize(void*) const noexcept’
     virtual void serialize(void* buffer) const noexcept = 0;
                  ^~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:168:10: error: looser throw specifier for ‘virtual void FlattenConcat::configureWithFormat(const Dims*, int, const Dims*, int, nvinfer1::DataType, nvinfer1::PluginFormat, int)’
     void configureWithFormat(const Dims* inputs, int nbInputs, const Dims* outputDims, int nbOutputs, nvinfer1::DataType type, nvinfer1::PluginFormat format, int maxBatchSize) override
          ^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:543:18: error:   overriding ‘virtual void nvinfer1::IPluginV2::configureWithFormat(const Dims*, int32_t, const Dims*, int32_t, nvinfer1::DataType, nvinfer1::PluginFormat, int32_t) noexcept’
     virtual void configureWithFormat(Dims const* inputDims, int32_t nbInputs, Dims const* outputDims, int32_t nbOutputs,
                  ^~~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:198:10: error: looser throw specifier for ‘virtual bool FlattenConcat::supportsFormat(nvinfer1::DataType, nvinfer1::PluginFormat) const’
     bool supportsFormat(DataType type, PluginFormat format) const override
          ^~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:510:18: error:   overriding ‘virtual bool nvinfer1::IPluginV2::supportsFormat(nvinfer1::DataType, nvinfer1::PluginFormat) const noexcept’
     virtual bool supportsFormat(DataType type, PluginFormat format) const noexcept = 0;
                  ^~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:203:17: error: looser throw specifier for ‘virtual const char* FlattenConcat::getPluginType() const’
     const char* getPluginType() const override { return FLATTENCONCAT_PLUGIN_NAME; }
                 ^~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:440:30: error:   overriding ‘virtual const AsciiChar* nvinfer1::IPluginV2::getPluginType() const noexcept’
     virtual AsciiChar const* getPluginType() const noexcept = 0;
                              ^~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:205:17: error: looser throw specifier for ‘virtual const char* FlattenConcat::getPluginVersion() const’
     const char* getPluginVersion() const override { return FLATTENCONCAT_PLUGIN_VERSION; }
                 ^~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:454:30: error:   overriding ‘virtual const AsciiChar* nvinfer1::IPluginV2::getPluginVersion() const noexcept’
     virtual AsciiChar const* getPluginVersion() const noexcept = 0;
                              ^~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:207:10: error: looser throw specifier for ‘virtual void FlattenConcat::destroy()’
     void destroy() override {}
          ^~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:645:18: error:   overriding ‘virtual void nvinfer1::IPluginV2::destroy() noexcept’
     virtual void destroy() noexcept = 0;
                  ^~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:209:16: error: looser throw specifier for ‘virtual nvinfer1::IPluginV2* FlattenConcat::clone() const’
     IPluginV2* clone() const override
                ^~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:661:24: error:   overriding ‘virtual nvinfer1::IPluginV2* nvinfer1::IPluginV2::clone() const noexcept’
     virtual IPluginV2* clone() const noexcept = 0;
                        ^~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:214:10: error: looser throw specifier for ‘virtual void FlattenConcat::setPluginNamespace(const char*)’
     void setPluginNamespace(const char* pluginNamespace) override
          ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:677:18: error:   overriding ‘virtual void nvinfer1::IPluginV2::setPluginNamespace(const AsciiChar*) noexcept’
     virtual void setPluginNamespace(AsciiChar const* pluginNamespace) noexcept = 0;
                  ^~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:219:17: error: looser throw specifier for ‘virtual const char* FlattenConcat::getPluginNamespace() const’
     const char* getPluginNamespace() const override
                 ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:687:30: error:   overriding ‘virtual const AsciiChar* nvinfer1::IPluginV2::getPluginNamespace() const noexcept’
     virtual AsciiChar const* getPluginNamespace() const noexcept = 0;
                              ^~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp: In member function ‘virtual nvinfer1::Dims FlattenConcat::getOutputDimensions(int, const Dims*, int)’:
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:89:16: error: ‘DimsCHW’ was not declared in this scope
         return DimsCHW(flattenedOutputSize, 1, 1);
                ^~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp: In member function ‘virtual bool FlattenConcat::supportsFormat(nvinfer1::DataType, nvinfer1::PluginFormat) const’:
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:200:69: error: ‘kNCHW’ is not a member of ‘nvinfer1::PluginFormat {aka nvinfer1::TensorFormat}’
         return (type == DataType::kFLOAT && format == PluginFormat::kNCHW);
                                                                     ^~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp: In member function ‘virtual nvinfer1::IPluginV2* FlattenConcat::clone() const’:
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:211:110: error: invalid new-expression of abstract class type ‘FlattenConcat’
         return new FlattenConcat(mFlattenedInputSize.data(), mFlattenedInputSize.size(), mFlattenedOutputSize);
                                                                                                              ^
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:33:7: note:   because the following virtual functions are pure within ‘FlattenConcat’:
 class FlattenConcat : public IPluginV2
       ^~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:606:21: note: 	virtual int32_t nvinfer1::IPluginV2::enqueue(int32_t, const void* const*, void* const*, void*, cudaStream_t)
     virtual int32_t enqueue(int32_t batchSize, void const* const* inputs, void* const* outputs, void* workspace,
                     ^~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp: At global scope:
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:263:17: error: looser throw specifier for ‘virtual const char* FlattenConcatPluginCreator::getPluginName() const’
     const char* getPluginName() const override { return FLATTENCONCAT_PLUGIN_NAME; }
                 ^~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1134:30: error:   overriding ‘virtual const AsciiChar* nvinfer1::IPluginCreator::getPluginName() const noexcept’
     virtual AsciiChar const* getPluginName() const noexcept = 0;
                              ^~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:265:17: error: looser throw specifier for ‘virtual const char* FlattenConcatPluginCreator::getPluginVersion() const’
     const char* getPluginVersion() const override { return FLATTENCONCAT_PLUGIN_VERSION; }
                 ^~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1148:30: error:   overriding ‘virtual const AsciiChar* nvinfer1::IPluginCreator::getPluginVersion() const noexcept’
     virtual AsciiChar const* getPluginVersion() const noexcept = 0;
                              ^~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:267:34: error: looser throw specifier for ‘virtual const nvinfer1::PluginFieldCollection* FlattenConcatPluginCreator::getFieldNames()’
     const PluginFieldCollection* getFieldNames() override { return &mFC; }
                                  ^~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1160:42: error:   overriding ‘virtual const nvinfer1::PluginFieldCollection* nvinfer1::IPluginCreator::getFieldNames() noexcept’
     virtual PluginFieldCollection const* getFieldNames() noexcept = 0;
                                          ^~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:269:16: error: looser throw specifier for ‘virtual nvinfer1::IPluginV2* FlattenConcatPluginCreator::createPlugin(const char*, const nvinfer1::PluginFieldCollection*)’
     IPluginV2* createPlugin(const char* name, const PluginFieldCollection* fc) override
                ^~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1171:24: error:   overriding ‘virtual nvinfer1::IPluginV2* nvinfer1::IPluginCreator::createPlugin(const AsciiChar*, const nvinfer1::PluginFieldCollection*) noexcept’
     virtual IPluginV2* createPlugin(AsciiChar const* name, PluginFieldCollection const* fc) noexcept = 0;
                        ^~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:274:16: error: looser throw specifier for ‘virtual nvinfer1::IPluginV2* FlattenConcatPluginCreator::deserializePlugin(const char*, const void*, size_t)’
     IPluginV2* deserializePlugin(const char* name, const void* serialData, size_t serialLength) override
                ^~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1182:24: error:   overriding ‘virtual nvinfer1::IPluginV2* nvinfer1::IPluginCreator::deserializePlugin(const AsciiChar*, const void*, size_t) noexcept’
     virtual IPluginV2* deserializePlugin(AsciiChar const* name, void const* serialData, size_t serialLength) noexcept
                        ^~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:280:10: error: looser throw specifier for ‘virtual void FlattenConcatPluginCreator::setPluginNamespace(const char*)’
     void setPluginNamespace(const char* pluginNamespace) override
          ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1197:18: error:   overriding ‘virtual void nvinfer1::IPluginCreator::setPluginNamespace(const AsciiChar*) noexcept’
     virtual void setPluginNamespace(AsciiChar const* pluginNamespace) noexcept = 0;
                  ^~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:285:17: error: looser throw specifier for ‘virtual const char* FlattenConcatPluginCreator::getPluginNamespace() const’
     const char* getPluginNamespace() const override
                 ^~~~~~~~~~~~~~~~~~
In file included from /usr/include/aarch64-linux-gnu/NvInferLegacyDims.h:53:0,
                 from /usr/include/aarch64-linux-gnu/NvInfer.h:53,
                 from /usr/include/aarch64-linux-gnu/NvInferPlugin.h:53,
                 from....../jetbot/ssd_tensorrt/FlattenConcat.cpp:9:
/usr/include/aarch64-linux-gnu/NvInferRuntimeCommon.h:1211:30: error:   overriding ‘virtual const AsciiChar* nvinfer1::IPluginCreator::getPluginNamespace() const noexcept’
     virtual AsciiChar const* getPluginNamespace() const noexcept = 0;
                              ^~~~~~~~~~~~~~~~~~
....../jetbot/ssd_tensorrt/FlattenConcat.cpp: In member function ‘virtual nvinfer1::IPluginV2* FlattenConcatPluginCreator::createPlugin(const char*, const nvinfer1::PluginFieldCollection*)’:
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:271:34: error: invalid new-expression of abstract class type ‘FlattenConcat’
         return new FlattenConcat();
                                  ^
....../jetbot/ssd_tensorrt/FlattenConcat.cpp: In member function ‘virtual nvinfer1::IPluginV2* FlattenConcatPluginCreator::deserializePlugin(const char*, const void*, size_t)’:
....../jetbot/ssd_tensorrt/FlattenConcat.cpp:277:58: error: invalid new-expression of abstract class type ‘FlattenConcat’
         return new FlattenConcat(serialData, serialLength);
                                                          ^
jetbot/ssd_tensorrt/CMakeFiles/ssd_tensorrt.dir/build.make:65: recipe for target 'jetbot/ssd_tensorrt/CMakeFiles/ssd_tensorrt.dir/FlattenConcat.cpp.o' failed
make[2]: *** [jetbot/ssd_tensorrt/CMakeFiles/ssd_tensorrt.dir/FlattenConcat.cpp.o] Error 1
make[2]: Leaving directory '....../build'
CMakeFiles/Makefile2:106: recipe for target 'jetbot/ssd_tensorrt/CMakeFiles/ssd_tensorrt.dir/all' failed
make[1]: *** [jetbot/ssd_tensorrt/CMakeFiles/ssd_tensorrt.dir/all] Error 2
make[1]: Leaving directory '....../build'
Makefile:86: recipe for target 'all' failed
make: *** [all] Error 2
➜  build git:(master) ✗