I am getting an error when loadng CF Buiklder 2016;
The log file states in part:
"Caused by: org.eclipse.core.internal.resources.ResourceException: Incompatible file format. Workspace was saved with an incompatible version: 0."
I have attached the actual log file
Note, I just tried unistalling and then reinstalling CF Builder
I suspect that your installation used remnants from a different CF Builder or Eclipse installation. Perhaps CF Builder 2018?
Suggestion: following these steps