Another Strange ASP.net Error: The compiler failed with error code 255
The solution was working locally for me but from server I was getting this error 'The compiler failed with error code 255'.
It worked for me by uninstalling the nuget package 'Microsoft.CodeDom.Providers.DotNetCompilerPlatform' from my solution and redeploying.
Remove the compilers tag from the web.config file:
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.4.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.4.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\"Web\" /optionInfer+" />
</compilers>
I'm running Win2k12 R2 as a desktop OS and yesterday upgraded vs2k13 to vs2k15 after which some of my .NET 4.5 web applications stopped working with the above error "The compiler failed with error code 255", a bit of Googling and I came up with the below;
https://support.microsoft.com/en-us/kb/3118750
I was scenario #2 in the above article - ultimately I just uninstalled KB3098779 and KB3097997, rebooted and the applications worked again, happy days.