Unable to add selected web part(s). Cannot import this Web Part.

Recently ran across this trying to install a customized webpart. Starting going over everything with a fine tooth comb. Even mocked up a .wepbart xml to get it to run.

 

Finally ran it in VS2005 on a 'test' site - turns out I had forgotten to add PUBLIC to the class so that it could be accessed.

 

ooops. won't do that again. actually I probably will...

 

 

Once again, another verbose Sharepoint Message...