What is an "invalid" SCORM package?

There are few reasons why you might see this error after uploading your course into Review My eLearning. 

Incorrect Tool:

Currently, Review My eLearning supports Articulate, Captivate, Lectora, Gomo, Enable SAP, RISE and iSpring. Learn more about the authoring tools supported by Review My eLearning here. 

imsmanifest.xml not in root of zip:

The SCORM specification states that the imsmanifest.xml should be in the root folder of the course. See the last paragraph of this scorm.com article: Content Packaging

SCORM Package Zip:

The course should be zipped after being published for SCORM. Most tools will offer to zip your SCORM package for you, and that is the best method. If you need to zip the course manually, ensure you do not simply right-click the published folder and compress it. Instead:

1. Open the published folder
2. Select all the folder contents (CTRL+A)
3. Right-click a file
4. Select "Send To"
5. Select "Compressed (zipped) folder”