Table of Contents

Common Issues

LMS shows a message "There has been a 500 error"

This error means that an internal exception was raised in the LMS's Python code. In this situation, LMS writes out a stack trace to its log file:

/edx/var/log/lms/edx.log

You can find this stack trace by opening the log file and scrolling to the bottom.

If the stack trace isn't enough to diagnose the problem, post it in the #ops Slack channel and someone should be able to help you

Studio shows the message "An error occurred in Studio and the page could not be loaded."

This error means that an internal exception was raised in Studio's Python code. In this situation, Studio writes out a stack trace to its log file:

/edx/var/log/cms/edx.log

You can find this stack trace by opening the log file and scrolling to the bottom.

If the stack trace isn't enough to diagnose the problem, post it in the #ops Slack channel and someone should be able to help you

Migrations Have Not Been Run

If you ever see errors along the lines of the one below saying some table doesn't exist, it means that there are migrations that haven't been run that you need to run.

Table '<name_of_some_table>' does not exist

The error should go away once migrations have been run.

Other Resources

If your issue is not listed on this page, there are many other resources that might help you:

http://docs.edx.org/ - in particular, read the guides for the version of Open edX that you are using
If you are still stuck, reach out to the community through email or Slack
- See: https://open.edx.org/resources/e-mail-lists

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