How do I solve the SQL exception after deploye application ?

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I make an app with local database after delpoye when i attempt to run i got above Error. my connection string is as....

[Error screen]

What I have tried:

C#

<connectionStrings>
<add name="connection" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\stdmgmt.mdf;Integrated Security=True" />
<add name="connection1" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\stdmgmt.mdf;Integrated Security=True" />
<add name="connection2" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\stdmgmt.mdf;Integrated Security=True" />
<add name="connection3" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\stdmgmt.mdf;Integrated Security=True" />
<add name="connection4" connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\stdmgmt.mdf;Integrated Security=True" />
</connectionStrings>

Please help me...

Posted 1-Jul-17 6:00am

Member 12955507

Updated 1-Jul-17 8:56am

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RickZeeland · Accepted Answer · 2017-07-01T08:56:00

Solution 1

AttachDBFileName is evil, see this question:
How do I connect to old version database in visual stadio 2015[^]

Posted 1-Jul-17 8:56am

RickZeeland