TFS invalid package feed permission

For a customer I recently set up an on premise package feed. I left everything default, added the feed to a Nuget Publish task and pressed release. The release failed!

After checking that the agent performing the release is actually part of the Project Collection Build Service group. Looking at the feed permissions I…

Missing TFS Icons

At a customer I migrated the TFS 2012 to the new TFS 2017. Due to company restrictions this had to be 2008 R2 Server. The Migration was just fine and everything seemed to be OK. But after a while the TFS Icons began to dissappear from the web portal. And when debugging the portal i…