I am using sharepoint online for custom development. I'm using sandbox solutions for it but all of sudden I'm unable to activate the sandbox solution. To resolve the mentioned issue, I changed "Include Assembly in Package" to "FALSE". Previously
it was "TRUE". Now I'm able to activate the solution but its throws error on browser as below:
"Web Part Error: Unable to load assembly group. The user assembly group provider was unable to provide any user assemblies for the specified assembly group. Correlation ID: 5531959d-f0b2-3000-b0e7-a5b587f5781b."
Does anyone have idea about. Please guys this is urgent!!!