I downloaded SlicerIGT to run LumpNav but it I cannot open slicelets

I am getting an error and cannot seem to open LumpNav slicelets even after I installed the SlicerIGT. It says could not find the Plus Remote module and I cannot find it within the SlicerIGT. How should I resolve this problem. Thanks.

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You need to install the SlicerOpenIGTLink extension.