System.IO.FileNotFoundException was unhandled while opening SPSite
If you get below exception in custom application, when you try to open Site to which you have rights, check “Project Properties/Build/Platform target”.
Change it from: “x86” to “Any CPU” or “x64”.
System.IO.FileNotFoundException was unhandled Message=The Web application at http://devbox1.com/could not be found. Verify that you have typed the URL correctly. If the URL should be serving existing content, the system administrator may need to add a new request URL mapping to the intended application. Source=Microsoft.SharePoint StackTrace: at Microsoft.SharePoint.SPSite..ctor(SPFarm farm, Uri requestUri, Boolean contextSite, SPUserToken userToken) at Microsoft.SharePoint.SPSite..ctor(String requestUrl)