“Unable to instantiate activity” error

Question

One of my Android apps has about 100,000 users and, about 10 times a week, I get the following exception being reported to me via Google\'s market tool:

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Answer 1

Having the same "rare" issue on all published games.

Might be an issue with installs to SD card, or moving app to the SD card, then removing the SD card.

Other guess is that the app gets downloaded or installed multiple times somehow.

I haven't been able to reproduce this so not able to nail it down either.