Hi,
as already mentioned in GT Event Recorder help, current Pharo version does not support ZIP signature that is used for large files.
That starts to be Metacello issue as soon as you need to work with some large Git repository because Metacello firstly downloads the repository working copy in the form of ZIP file.
To reproduce try:
Metacello new
baseline: 'Moose';
repository: 'github://pavel-krivanek/Moose/repository';
load.
or:
ZipArchive new readFrom: 'archive.zip' asFileReference.
The workaround is to work with a local clone of the repository.
Cherrs,
-- Pavel