Keywords: OpenEdX - Linux - Technical issue - Permissions
I created a "Problem" for codegrader. And published the update of the course. After I tried to "Submit" correct answer. But an error was generated: "Your submission could not be graded ...".
The code of "Problem" and the screenshoot of the error situation are on images.
The example of the "Problem" I'd taked from the page: https://edx.readthedocs.io/projects/edx-partner-course-staff/en/latest/exercises_tools/external_graders.html.
Settings of my EDX-system are on other topic: https://community.bitnami.com/t/unable-to-deliver-your-submission-to-grader-reason-queue-edx-demox-not-found-please-try-again-later/72080/36