I create an c# windows form application .for database i used sqlserver localDB. after creating setup file of project it run correctly in my pc.but when i installed it in another pc i had this error:
"An error occurred: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The serer was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections.(provider: SQL Network Interfaces,error:50-Local Database Runtime Error occurred. he specified LocalDB instance does not exist.)"
i searched much for fixing this error and just found something like (being sure that Microsoft sql server express LocalDB vX installed) but this didn't work.
my connection string:
Data source=LocalDB)MSSQLLocalDB;AttachDbFilename=D:Daneshdesk1ackFINALLpypropyproappDB.mdf;Integrated Security=True
in my pc and another pc ( Microsoft sql server express LocalDB 2012) installed.
i used some prerequisites in setup file properties like(sql server express LocalDB 2012 and .NET framework 4.7) .these are installed in my pc and another one.
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