OS (e.g. Win10): PsychoPy version: 2020.2.4. Standard Standalone? (y/n) yes Problem:: Dear Community, when I try to start an experiment in the runner (which was previously built in the builder), only the background is displayed - regardless of the experiment, which is why I suspect that it is n…

This is a known bug - if you close Runner or if you have your preferences set up so that only the Builder or Coder window opens on launch, then the app’s internal representation of Runner is just None and so any attempt to send things to the output window causes this error. To fix, just set your pre…

In addition: Running a demo directly in the coder works. Maybe it has something to do with the Experiment Runner? PS: The starting page of the experiment was finally displayed. But it took a few minutes and afterwards the error in the starting post of this thread was displayed.

Dear AlexanderLe and TParsons, I experience the same problem and I got the same error when runningthe version 2020.2.5 I am tryingto run a simple experiment made with a 10 seconds text, but I got exactly the same error. The screen freezes and I have to restart the PC I have Win10, standalone vers…

I’m not sure what was causal in solving the problem. But after I reinstalled Psychopy, updated my graphics driver, installed all Windows updates and cleaned my system, it worked again. Maybe this will help you. Best regards!

thanks a lot for the feedback! I proceeded in the way described here, and it seems I have solved this issue… [image] Psychopy 2020.2.5 unhandled internal error Builder Many Many thanks for your prompt reply. To give more details about my configuration: Intel Core i7-377…

Internal Error - Only the background screen is displayed

Builder

pruggeri November 10, 2020, 1:20pm 6

thanks a lot for the feedback! I proceeded in the way described here, and it seems I have solved this issue…

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Experiment is not shown in the screen Builder	2	389	November 12, 2020
Help:unhandled internal error Psychopy2020.2.10 coder Coding	2	637	July 9, 2021
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Internal Error - Only the background screen is displayed

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