Cannot be opened because it is version 852. this server supports version 782 and earlier
问题 I am using Visual Studio 2017 and SQL Server 2014. While attaching a database file to Visual Studio, I get this error: "" After upgrading the file I used this connection string <connectionStrings> <add name="con" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\binaaelmamorra.mdf;Integrated Security=True;Connect Timeout=30"/> </connectionStrings> It's working fine on my machine, but on the client machine, an error pops up saying Cannot be opened because it