雷达监测到Fallen时，gl_classed.py报错。报错如下：
E:\TI2\mmwave_industrial_toolbox_4_11_0\labs\People_Counting\visualizer\venv\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py:260: RuntimeWarning:
Traceback (most recent call last):
File "F:\PyCharm 2021.1.1\plugins\python\helpers\pydev\pydevd.py", line 2173, in <module>
main()
File "F:\PyCharm 2021.1.1\plugins\python\helpers\pydev\pydevd.py", line 2164, in main
globals = debugger.run(setup['file'], None, None, is_module)
File "F:\PyCharm 2021.1.1\plugins\python\helpers\pydev\pydevd.py", line 1476, in run
return self._exec(is_module, entry_point_fn, module_name, file, globals, locals)
File "F:\PyCharm 2021.1.1\plugins\python\helpers\pydev\pydevd.py", line 1483, in _exec
pydev_imports.execfile(file, globals, locals) # execute the script
File "F:\PyCharm 2021.1.1\plugins\python\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "E:/TI2/mmwave_industrial_toolbox_4_11_0/labs/People_Counting/visualizer/fallDetection_main.py", line 1042, in <module>
sys.exit(app.exec_())
File "E:\TI2\mmwave_industrial_toolbox_4_11_0\labs\People_Counting\visualizer\venv\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 239, in paintGL
self.drawItemTree(useItemNames=useItemNames)
File "E:\TI2\mmwave_industrial_toolbox_4_11_0\labs\People_Counting\visualizer\venv\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 271, in drawItemTree
self.drawItemTree(i, useItemNames=useItemNames)
File "E:\TI2\mmwave_industrial_toolbox_4_11_0\labs\People_Counting\visualizer\venv\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 260, in drawItemTree
debug.printExc()
--- exception caught here ---
File "E:\TI2\mmwave_industrial_toolbox_4_11_0\labs\People_Counting\visualizer\venv\lib\site-packages\pyqtgraph\opengl\GLViewWidget.py", line 257, in drawItemTree
i.paint()
File "E:\TI2\mmwave_industrial_toolbox_4_11_0\labs\People_Counting\visualizer\gl_classes.py", line 42, in paint
self.GLViewWidget.qglColor(3)
AttributeError: 'GLViewWidget' object has no attribute 'qglColor'
debug.printExc()
Error while drawing item <gl_classes.GLTextItem object at 0x000002CFB931B940>.
