Dear All, there was a limitation in the Mouse module. The nice maintainer answered:
> Good! Mouse depends on Devel::PPPort 3.19 with configure_requires, > but, yes, I'll add it to build_requires, too. Some CPAN clients > might not support configure_requires, I think. https://rt.cpan.org/Ticket/Display.html?id=55419 So this might also be resolved by updating the cpan client in Strawberry, I guess. Hopefully Mouse gets fixed as well. RĂ¼diger PS: Mouse was required for MongoDB, which I strongly recomment. Its quite some fun just to simply push some hash to a db without any SQL.