The Operation could not be completed: Invalid Pointer

Question

Update:

Below you will find answers that are mostly connected to ASP.NET issues and not the question I originally had. If you have any issues regarding ASP.NET scroll down and ignore the Answer that is marked as solution, as I had some extremely rare case that I haven't encountered again so far.

---

Original Question:
for a few days i have a problem with my visual studio here. everytime i want to open an Android landscape layout (default layouts load normally) it tells me "The Operation could not be completed: Üngültiger Zeiger" (Invalid Pointer) (english studio on a german Win 7) i've found some threads in different forums, but most were related to a font change, what i never did. my font is Consolas right now

another thing i found was this one: Link
but i never found those lines in my .csproj files

so... what is wrong here?

Answer 1

This is an old thread but the same symptom has come back but based on a new cause. I got the error after installing ASP.NET 5 RC1. I solved the problem by deleting this folder:

Users\{yourusername}\AppData\Local\Microsoft\VisualStudio\14.0\ComponentModelCache

(or %LocalAppData%\Microsoft\VisualStudio\14.0\ComponentModelCache), and afterwards restarted Visual Studio.

Answer 2

Close Visual Studio Delete %LocalAppData%\Microsoft\VisualStudio\14.0\ComponentModelCache Re-open Visual Studio

Answer 3

I was having this problem briefly, I immediately came to this thread and renaming the solution did not work for me. However, once I restarted visual studios and reopened the issue went away (and has not come back since).