Walid,
Try this:
1) In the Program Files (x86)\MSBuild\v4.5 folder add:
<Import Project="..\IdeaBlade\IdeaBlade.DevForce.Common.targets" Condition="Exists('..\IdeaBlade\IdeaBlade.DevForce.Common.targets')" />
to the Custom.After.Microsoft.Common.targets file.
2) Create an IdeaBlade folder inside Program Files (x86)\MSBuild and copy
IdeaBlade.DevForce.Common.targets
and
IdeaBlade.VisualStudio.Build.Tasks.dll
into it. (you'll find these files in our installation folder: Program Files (x86)\DevForce 2010)
3) Be sure to add the .cf file to your project containing the Code First Model.
Regards,
Silvio.