And the original problem is due to that, I need to use
Server Error in '/Start_dev' Application. Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: Master page source files must have a .master file extension. Source Error: Line 17: </connectionStrings> Line 18: <system.web> Line 19: <pages masterPageFile="~\Default.aspx" /> Line 20: <customErrors mode="Off"/> Line 21: <compilation targetFramework="4.5" /> Source File: C:\inetpub\VS2012\Start_dev\web.config Line: 19 Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34237
From novice to tech pro — start learning today.