After reporting:
https://community.slickedit.com/index.php/topic,13654.0.htmlI tried reopening the solution.
(I had closed the solution, deleted all the built files including the vtg and vpwhist)
Now when I build, I get:
1>------ Build started: Project: ConsoleApplication3, Configuration: Debug Win32 ------ 1>This operation should only take place on the UI thread. ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
BTW, this error doesn't appear in the Message List.
Restarting Slick hasn't helped.
The solution seems to be to set the ActiveConfiguration to a 64bit build.
It defaults to 32-bit debug.
Once I build 32-bit in VisualStudio2015, then Slick is able to build 32-bit.