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The Visual Studio component cache is out of date please restart visual studio.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?
The solution was actually very simple. I closed Atmel studio, and looked for
%USERPROFILE%\AppData\Local\Temp\AtmelStudio_7.0.790
I deleted this whole folder, and when I reopened Atmel Studio, everything worked fine.