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Usually the beginning of the error message is the most important part; later errors are often a result of earlier errors.

In this case, the best I can tell from the piece of the error message that you've posted is that there's some kind of error in your talker code. Unfortunately the error message in this case is so verbose that I don't see any line numbers or other references to the actual location in your talker that might be causing trouble.

If you look through the error messages carefully you should occasionally see lines that reference your talker.cpp ; have a careful look at those lines to make sure they match the tutorial.