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hi
when write Package Manager Console enable-migrations for ef Code frist

View this error :
The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
Posted 15-Mar-13 21:03pm

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Solution 1

Your question is not too clear.

Following might help:
MSDN: Code First Migrations[^]
(HRESULT: 0x80070057 (E_INVALIDARG)) on debug [^]

Clear out the temporary framework files for your project in:
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\
For Windows 7, the path is: C:\Users\[username]\AppData\Local\Temp\Temporary ASP.NET Files\
For 64 bit systems with 'Framework' in the path the full path is: C:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\
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