Problem in Componentization Exercise - Any Suggestions Plz.

Hello All,
I am trying to do this excercise of componentization which is from the Tutorail, I am following the exercise steps but I seem to be getting at error at:
private final IPrivateMasterComp wdThis;
It keeps telling me that IPrivateMasterComp cannot be resolved for the field MasterComp.wdThis can anyone tell me why this error is happening and how it can be fixed, I would appreciate any help anyone can offer.
Best Wishes,
John.

John,
Do a Reload + Rebuid for the corresponding project. Also try a DC build. The error should vanish after that.
Bala.

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Problem in Componentization Exercise - Any Suggestions Plz.

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