c# - The process cannot access the file 'C:Project\App_Data\Database.mdf' because it is being used by another process -

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i'm getting following error:

the process cannot access file 'c:project\app_data\database.mdf' because being used process.

how can solve it?

it's used process, maybe sql server service.
use unlocker find process , take appropriate action.
careful: if'you re using vs, have opened db connection during development.


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