"One or more errors encountered while loading the designer"
If you get this kind of error in the designer, here the steps to remediate the problem:
- Close all windows within VS
- Close VS
- Goto the folder where you have your solution(s) via Explorer.
- Check the properties of that folder -> Advanced -> Make sure that Indexing is turned off (including sub folders)
Now, the problem will (should) not come back.
- Start VS
- Build -> Rebuild Solution
- Open the form in the designer
Pat