GP Upgrade – “Please Select a Company” Message

This one’s quite simple, yet intriguing. I am working on a test upgrade; from GP2010 to GP 2015 R2. I decided to only take production company databases and left all test companies, for all logical reasons. After applying GP 2010 SP4, I decided to perform a unit testing. After logging in to GP, I received following message, without having any issues later on. It was just this message: (Above screenshot courtesy: Ugan ) As a thumb rule, I searched on GP community and stumbled across more