My point is not "it is fixable". My point is you didn't look at the error and just decided "shit's broken". Your problem is with 99.999999% certainty a simple

My point is not "it is fixable". My point is you didn't look at the error and just decided "shit's broken". Your problem is with 99.999999% certainty a simple problem that is unrelated to cabal. The fact that it is possible to see an error does not indicate that there is some uncertainty about whether or not you will be able to install lib x.