csc.exe has stopped working causes Server Error in '/' Application

Question

When I run my application on VS2015 I get a window saying that csc.exe has stopped working like below:

After I click to close the program I get another error in the browser saying:

Server Error in '/' Application.

Detailed Compiler output looks like below:

C:\Program Files (x86)\IIS Express>D:_myURL\bin\roslyn\csc.exe /t:library /utf8output /nostdlib+ /R:"C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.dll"

What could be the issue?

Solution 1

I faced the same issue and I would suggest to follow the steps described here:

• Close all instances of Visual Studio 2015 and if they don't do it automatically disappear, end tasks for all the VBCSCompiler processes.
• In your Visual Studio project under Bin folder you will see a roslyn folder (new for VS 2015)
• Delete the roslyn folder and all contents within.
• Restart Visual Studio 2015
• Re Build your project and all should be well again.

Solution 2

I too faced the same issue.After I delete files in the bin folder and run the application.The issue is fixed.

Comments

[Ted]

I take it back. deleting the roslyn folder leads to that: stackoverflow.com/questions/32780315/…

[WasiF]

one of the easiest step, that worked for me. highfive

[Don H]

I just found out that you don't have to close all your Visual Studio instances. 1. Just stop all debug sessions 2. Clean Solution 3. Navigate to you ~/bin folder. 4. Shift+Delete you roslyn folder. 5. Rebuild Solution (and the Roslyn folder should appear) 6. Run