“Faceted Project Problem (Java Version Mismatch)” error message

Question

Eclipse\'s \"problems\" tab is displaying this error:

Description: Java compiler level does not match the version of the installed Java project facet.

Answer 1

You have two options to fix the issue:

1- Manually make sure the two versions match.
2- Use the IDE's help as follows:
- Right mouse click on the error in the 'Problems' view
- Select the 'Quick Fix' menu item from the pop-up menu
- Select the right compiler level in the provided dialog and click 'Finish'.

Taken from Eclipse: Java compiler level and project facet mismatch

Also gives location of where you can access the Java compiler and facet version.