Error 9 The application domain in which the thread was running has been unloaded.

Question

When to build my website project this morning and got this error:

Error 9 The application domain in which the thread was running has been unloaded.

No additional line numbers, project, or file information are displayed, just the error message. I tried cleaning the solution and opening and closing visual studio (running 2012 beta). Anyone have any suggestions to how I can get my project to build?

Answer 1

Usually, just selecting the rebuild option is enough to resolve this issue. However you may also need to:

1. adjust your virtual memory settings to make more virtual memory available.
2. exit other applications that are consuming large amounts of virtual memory.
3. it also appears that Microsoft attempted a fix for this in Service Pack 1 for Visual Studio, although this has not resolved the issue for all people.