LMS Error: "An invalid Mastery Score was detected"

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You may encounter an LMS error similar to the following...

An invalid Mastery Score was detected. The value '_LMS_PASS_SCORE_' could not be converted to a decimal.

An invalid Mastery Score was detected. The value '_LMS_PASS_SCORE_' could not be converted to a double.

...if both of the following criteria are true:

  • You are tracking the presentation by an embedded quiz.
  • The passing score for the quiz is set to 0%.

Some learning management systems may not be configured to interpret the information from your Articulate content in the above scenario. If you encounter an error like those noted above, do the following to correct it:

  1. Open the folder that contains your published output, or republish your presentation.
  2. Open the imsmanifest.xml file in a text editor, such as Notepad.
  3. Search for _LMS_PASS_SCORE_. (In Notepad, you can perform a search by going to Edit > Find.)
  4. Replace _LMS_PASS_SCORE_ with 0. (That is the number zero.)
  5. Save and close the imsmanifest.xml file.
  6. Zip your published output, and upload it to your LMS.