Improve error output in case of locally installed packages with errors in the package description. See #421.
Improve error output in case of locally installed packages with errors in the package description. See #421.

dreamsxin/dub,D-Programming-Language/dub,schuetzm/dub,Geod24/dub,Flamaros/dub,y12uc231/dub,xentec/dub,jeanbaptistelab/dub,rjframe/dub,Abscissa/dub-data-mod,grogancolin/dub,Abscissa/dub,nazriel/dub,jelmansouri/dub,alexeibs/dub,gedaiu/dub,p0nce/dub