Arduino on Xcode Project — Official Thread

ScottG:

avenue33:
embedXcode is provided with the path to the tool-chain and no specific operation is carried out concerning one specific file. It is really strange as other files are used.

I need the code of the project to investigate and see what's happening.

It happens when creating a new project. Just put the panstamp library in your libraries folder and create a new project and you should get the same error. Panstamp library is located here:
Google Code Archive - Long-term storage for Google Code Project Hosting.

panStamp is a whole new platform and is not currently supported by Arduino.

I'd need a couple of these boards so I can investigate and add support to them.