Editor
Studio Editor
The project you are opening contains compilation errors
Your studio project is probably corrupted:
- go to the folder where you saved your studio project, it should look like this:

Delete the following folders: Build, Library, Logs, ProjectSettings, Temp and UserSettings.
when you open the project the error should be gone, If not you will have to make a new project from the studio installer
"Access Denied" screen when trying to sign in
log out of rec.net in your browser https://rec.net/auth/signout before trying to login to studio