Failed To Open A Connection To The Database

Hello,





          I receive
this error when choosing the data connection in TableAdapter Wizard for me to
reference the ASPNETDB.mdf database.




Failed to open a connection to the database










"The header for file
'C:InetpubwwwrootWebsites4App_DataASPNETDB.MDF is not valid database
file header. The FILE SIZE property is incorrect.
An attempt to attach an auto-named database exists, or
specified file cannot
be opened, or it is located on UNC share."


Check the connection and try again.







 
I already have the connection at config but the error
persists.

 













...

 
<connectionStrings>

    <add
name="ConnectionString1" connectionString="Data
Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|mydatabase.mdf;Integrated
Security=True"
providerName="System.Data.SqlClient" />

    <add
name="ASPNETDBConnectionString1" connectionString="DataSource=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated
Security=True"
providerName="System.Data.SqlClient" />

 
</connectionStrings>

  <system.web>
...  cheers,
imperialx