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You'll also want a subversion plugin before you go much further.
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Subclipse is one option, but the latest releases need Eclipse 4.2.x so that won't work super easily. Subversive is available from the repository above, and it works with the project sets.
Each required plugin which is not part of the standard eclipse SDK is in the source repository as its own project. Sample list of required projects for the LOUI build project set are as follows:
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