Were these projects configured to create project-specific tag files ?
No
Is the tag database you get the message about the one associated with the project you closed, or the project you added ?
It was the tag database for the entire workspace.
What do you exactly mean by closing the project? Did you close the workspace? Or did you remove the project from the workspace?
I removed the project from the workspace. In the "Projects" tab I single clicked the project, then pressed the delete key.
Could you zip up the workspace file and the relevant project files so that I can try to track down this problem?
Look for "slickopt.tar.gz" on support. The workspace file is "devtest.vpw". I originally had openssl098.vpj as part of the workspace. Removed that and then inserted openssl102.vpj into the workspace. Upon the insert I got the error. I since removed openssl102.vpj from the workspace and did project->new and created a new project to insert into the workspace, the openssl_1_1_1c.vpj, but that did not repeat the issue.
This only happened to me one time and haven't seen it since - although I have not tried this again.