I'm on windows 7, using Atmel studio 7.0. When I opened up my project in Atmel Studio, it failed to load and gave this error:
The Visual Studio component cache is out of date please restart visual studio.
When I closed and reopened Atmel Studio, the same error continued. I also tried right clicking on my project, and selecting "Reload project" but then I got this error:
Value cannot be null. Parameter name: url
How can I open up my project?
Using "disk cleanup" to cleanup temporary files and that did the trick - as I do not have the "amtelstudio" mentioned - so that was not applicable in my case.
Using Windows explorer - click on the C drive, go to properties and the disk cleanup button is on that panel. Run that to clear out temp files and whatever it was that Visual Studio was saying was out of date - so it is removed.