Sometimes the following error may occur while designing RDLC
Report
“The provided metadata is not valid”
This error can happen when the following conditions are
true:
You are using Windows Vista and User Access Control (UAC) is
turned on.
- The executable file that runs the Visual Studio development environment (devenv.exe) is set to run as an administrator.
- The executable file that runs the Classic client with Microsoft SQL Server (finsql.exe) is not set to run as an administrator.
- To resolve this issue, either turn off UAC or set both finsql.exe and devenv.exe to run as an administrator.
To turn off UAC
- In Control Panel, select User Accounts.
- In User Accounts, click Turn User Account Control On or Off.
- Clear the Use User Account Control (UAC) to help protect your computer check box.
- To set a program to run as an administrator
- Right-click the .exe file, and then select Properties.
In the Properties window, on
the Compatibility tab, in the Privilege Level section,
selectRun this program as an administrator.
