error:Could not load file or assembly 'System.Data.Entity

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hi,
error:
Could not load file or assembly 'System.Data.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.

scenario:

used embedded firebird ado.net service provider for databse conectivity.
no issues with firebird's dll coz able to use classes such as FbDataAdapter,FbConnection,FbCommand but when tries to read with FbDataReader or fill dataset with FbDataAdapter it gives this error

more detailing

CSS

i tried using excel database n it works fine...
i hav downloaded firebird installed then added refrance n copied fbembed.dll in \bin\Debug following some tutorial on this site n then jus used namespace  FirebirdSql.Data.FirebirdClient; so after that i m able to acces FbDataAdapter etc;
this procedure is fine or somthng missin???

Posted 19-May-10 3:28am

saurabh.patil@hotmail.com

Updated 19-May-10 5:02am

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saurabh.patil@hotmail.com · Answer 1 · 2010-06-21T22:07:00

Solution 2

i got very vague solutions:
option 1
use .NET framework 2.0 n its done.
(coz System.Data.Entity.dll is copied at ur bin folder automatically)
option 2
if u want to stick to 3.5 copy System.Data.Entity.dll in
bin folder project

Posted 21-Jun-10 22:07pm

saurabh.patil@hotmail.com

Wes Aday · Answer 2 · 2010-05-19T04:17:00

Solution 1

Do you have Microsoft .Net Framework 3.5 SP1 installed?

Posted 19-May-10 4:17am

Wes Aday

Comments

saurabh.patil@hotmail.com 19-May-10 10:52am

yeah i do have 3.5 sp3

[no name] 19-May-10 11:12am

I would suggest that you check again. AFAIK, .NET 3.5 only is up to SP1.

saurabh.patil@hotmail.com 20-May-10 3:48am

hey but what about inital set up???....is it correct???
tutorial that m follwing
http://www.codeproject.com/KB/database/EmbeddedFirebird.aspx