Can I safely delete the Temporary ASP.Net folder's contents?

Question

My application works fine whenever I run under VS 2010. When I upload it on a server and I run from IIS it gives Complie error : CS0433: 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\~\App_Web_dzybh5am.DLL' and 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\~\App_Web_znctdhjf.DLL'

Error:

Line 146:    
Line 147:    [System.Runtime.CompilerServices.CompilerGlobalScopeAttribute()]
Line 148:    public class default_aspx : global::_Default, System.Web.SessionState.IRequiresSessionState, System.Web.IHttpHandler {
Line 149:        
Line 150:        private static bool @__initialized;

A quick search on google revealed that deleting those temporary files solved the problem.

Is it useful to delete those temporary files, will it affect my application in future ?

I just want to know should I delete all files from temporary folder.

Answer 1

As long as your web app is shut down, it shouldn't have any effect on the application.
.Net / IIS uses that temp folder as a place to hold the compiled versions of your aspx/razor pages.

Keep in mind though that other IIS web apps may be using that temp folder, so be careful about when you do it.