You probably have two versions of Scalar::Util installed. The .pm file for the version you're loading can't find its associated .so file, so you're not getting the XS version which adds weakref support.

If you search your file system for Util.pm and Util.so, you'll probably find they're in very different places. Removing the old versions and reinstalling from the CPAN will likely solve the problem.

In reply to Re: Test::Deep - weak references are not implemented by chromatic
in thread Test::Deep - weak references are not implemented by andreas1234567

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