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Adding pbdom125.pbd to PB 12.5.2 Library List
It's not a PFC issue per se, but PB .net 12.5.2 Solution Explorer will not let you add anything but .pbls to the library list. I believe it will accept .pbds via the migration tool from an existing target/.pbt file.
I had to go directly into the target/.pbtx file to add pbdom125.pbd to the library list for my existing PB .net 12.5.2 WPF app