My experiment doesn't initiate online

Builder
1

I try to run an online experiment in pavlovia but nothing happens there. It supposed that its a builder problem that I am using psychopy 2020.2.4. But I updated it recently. Please let me know if you can help me in that way
Best
Negin

2

What sorts of error messages are you getting? And can you describe what you have tried?

Perhaps this resource will help: https://www.psychopy.org/online/fromBuilder.html

3

Thanks for your response. It doesn’t show anything and I got this error
Traceback (most recent call last):
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\app\builder\builder.py”, line 1240, in onPavloviaRun
self.fileExport(htmlPath=self._getHtmlPath(self.filename))
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\app\builder\builder.py”, line 719, in fileExport
target=“PsychoJS”)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\scripts\psyexpCompile.py”, line 73, in generateScript
compileScript(infile=exp, version=None, outfile=filename)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\scripts\psyexpCompile.py”, line 242, in compileScript
_makeTarget(thisExp, outfile, targetOutput)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\scripts\psyexpCompile.py”, line 214, in _makeTarget
script = thisExp.writeScript(outfile, target=targetOutput, modular=True)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\experiment_experiment.py”, line 251, in writeScript
self_copy._currentRoutine.writeRoutineBeginCodeJS(script, modular)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\experiment\routine.py”, line 277, in writeRoutineBeginCodeJS
thisCompon.writeRoutineStartCodeJS(buff)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\experiment\components_base.py”, line 202, in writeRoutineStartCodeJS
self.writeParamUpdatesJS(buff, ‘set every repeat’)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\experiment\components_base.py”, line 405, in writeParamUpdatesJS
target=“PsychoJS”)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\experiment\components_base.py”, line 399, in writeParamUpdates
target=target)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\experiment\components_base.py”, line 435, in writeParamUpdate
valStr = str(val).strip()
TypeError: str returned non-string (type NoneType)

4

Also, the javascript doesn’t exist in html file