Can you please let us know what is the error you are getting? Can you also please make sure that you have taken all the configuration files from the source control? Those files are located in ~/App_Data/Sitefinity/Configuration/ in the Sitefinity project. If you are using the same source for the project it would be better if you do not create a new project within the project manager but if you get the project from source control and then just add an entry for it in the Projects.xml file located in the directory of your project manager.
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