The Office SharePoint Server Standard Web application features feature must be activated" on Windows Server 2008 R2

After creating my development machine and added different sites using WSS templates (such as Team Site), i had the above error when i tried to add a Collaboration Portal site. The solution is:

1- Deactivate the feature

2- Create a publishing site collection (The error still there)

3- Activate the feature

4-Create a publishing site collection again (Voila , its working).

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