مشکل در بانک اطلاعاتی سی شارپ

سلام متشکرم حل شد 

You should be able to get this by doing the following:

• Open Visual Studio
• Go to the TOOLS menu
• Select "Extensions and Updates..."
• Expand "Updates" (left nav)
• Go to "Product Updates"
• Select the entry for "SQL Server Data Tools" (or whatever has a similar name)
• Click the "Update" button within that entry
• It will download a file to your computer called "SSDTSetup.exe"
• Run "SSDTSetup.exe" and it will download and install the updated version (as of right now the current version is 12.0.41025)
• Once it is done installing, close and re-open Visual Studio