You may run into this error after upgrading DevExpress version of your .NET project through DevExpress Project Converter:
Server Error in ‘/’ Application.
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: CS0433: The type ‘DevExpress.Web.ASPxClasses.Paddings’ exists in both ‘c:\Windows\Microsoft.NET\assembly\GAC_MSIL\DevExpress.Web.v13.1\v4.0_13.1.5.0__b88d1754d700e49a\DevExpress.Web.v13.1.dll’ and ‘c:\Users\Nedim\AppData\Local\Temp\Temporary ASP.NET Files\root\2469c78b\489019cf\assembly\dl35b06e65\48aa4dfb_0a84ce01\DevExpress.Web.v12.2.DLL’
Solution
Close Visual Studio and clear bin and obj folders in your project directory which was this path in my case: C:\Users\Nedim\Documents\Visual Studio 2012\Projects\projectname\projectname
If it doesn’t work, try these steps:
- Restart IIS
- Clear the content of these folders:
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\
C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\ - Delete App_Licenses.dll file in your solution
- Rebuild your project