While loading Magma via:

((Smalltalk at: #ConfigurationOfMagma) project latestVersion) load.

I get:

Error: Could Not Resolve: Ma exception handling [Ma exception handling-cmm.33] in /home/casimiro/Desenvolvimento/Pharo/package-cache http:

And in debugger:

linearLoadPackageSpec: packageSpec gofer: gofer

where

packageSpec is:

spec
    name: 'Ma exception handling';
    file: 'Ma exception handling-cmm.33'.