Error while running to task_reset()

[Starsshine21]

When I tried to write my own python script to run, like RLBench, I encountered two problems: 1. The photos of the five cameras are all black. 2.When the code was executed to task.reset(), I encountered an error with the following specific information:
External call to simCallScriptFunction failed (_WriteCustomDataBlock@PyRep): Script function doe not exist.
After the error occurred, V-REP crashed.
In terminal:
Traceback (most recent call last):
File "test.py", line 77, in
descriptions, obs = task.reset()
File "/home/xiesenwei/robotics/VLMBench/vlmbench/amsolver/task_environment.py", line 93, in reset
desc = self._scene.init_episode(
File "/home/xiesenwei/robotics/VLMBench/vlmbench/amsolver/backend/scene.py", line 131, in init_episode
self.descriptions = self._active_task.init_episode(index)
File "/home/xiesenwei/robotics/VLMBench/vlmbench/vlm/tasks/drop_pen_color.py", line 26, in init_episode
return super().init_episode(index)
File "/home/xiesenwei/robotics/VLMBench/vlmbench/vlm/tasks/drop_pen.py", line 49, in init_episode
waypoints = GraspTask.get_path(try_ik_sampling=False, ignore_collisions=True)
File "/home/xiesenwei/robotics/VLMBench/vlmbench/amsolver/backend/unit_tasks.py", line 284, in get_path
WriteCustomDataBlock(waypoint.get_handle(),"waypoint_type","pre_grasp")
File "/home/xiesenwei/robotics/VLMBench/vlmbench/amsolver/backend/utils.py", line 276, in WriteCustomDataBlock
pyrep_utils.script_call('_WriteCustomDataBlock@PyRep', PYREP_SCRIPT_TYPE,
File "/home/xiesenwei/anaconda3/envs/vlm/lib/python3.8/site-packages/pyrep/backend/utils.py", line 65, in script_call
return sim.simExtCallScriptFunction(
File "/home/xiesenwei/anaconda3/envs/vlm/lib/python3.8/site-packages/pyrep/backend/sim.py", line 698, in simExtCallScriptFunction
_check_return(ret)
File "/home/xiesenwei/anaconda3/envs/vlm/lib/python3.8/site-packages/pyrep/backend/sim.py", line 27, in _check_return
raise RuntimeError(
RuntimeError: The call failed on the V-REP side. Return value: -1

Error: signal 11:

/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libcoppeliaSim.so.1(_Z11_segHandleri+0x30)[0x7f4ba9411ae0]
/lib/x86_64-linux-gnu/libc.so.6(+0x43090)[0x7f4c4bd49090]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Core.so.5(_ZNK18QThreadStorageData3getEv+0x2b)[0x7f4ba6e3d1eb]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5OpenGL.so.5(_Z19qt_qgl_paint_enginev+0x2d)[0x7f4ba8ba61ed]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Widgets.so.5(_ZN14QWidgetPrivate11repaint_sysERK7QRegion+0x94)[0x7f4ba84a5094]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Widgets.so.5(_ZN14QWidgetPrivate16syncBackingStoreEv+0x5f)[0x7f4ba84bea6f]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Widgets.so.5(_ZN7QWidget5eventEP6QEvent+0x300)[0x7f4ba84d5920]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Widgets.so.5(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0x9c)[0x7f4ba849792c]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Widgets.so.5(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x2b0)[0x7f4ba849ead0]
/home/xiesenwei/robotics/CoppeliaSim_Edu_V4_1_0_Ubuntu20_04/libQt5Core.so.5(_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent+0x108)[0x7f4ba7005008]
QMutex: destroying locked mutex

Meanwhile, I encountered an error while running dataset generator NLP. py in the tools directory: The call failed on the V-REP side Return value: -1

Thanks for any help

[KzZheng]

I think you forgot to copy the simAddOnScript_PyRep.lua from the current folder into the Coppliasim folder. Remember to do that every time after you install PyRep