If the physical path is not inside the web application's directory, you will get this error.

 

In the following code example, the physical path "c:\inetpub\wwwroot\uploads" is part of web application's directory.


C# Example:

//use the app-based path 



Editor1.Setting["security:ImageGalleryPath"]= "~/uploads";

//use the absolute path 

Editor1.Setting["security:ImageGalleryPath"]= "/uploads";

//use the physical path 

Editor1.Setting["security:ImageGalleryPath"]= @"c:\inetpub\wwwroot\uploads"; 

or

//use the app-based path 



Editor1.SetSecurityImageGalleryPath= "~/uploads";

//use the absolute path 

Editor1.SetSecurityImageGalleryPath= "/uploads";

//use the physical path 

Editor1.SetSecurityImageGalleryPath= @"c:\inetpub\wwwroot\uploads";