SUMMARY

We are receiving many reports in KStars that catalog addons cannot be installed under Windows 10. The same catalogs are installed fine on KStars Linux & MacOS versions.

This is the error:

 [2021-03-05T16:53:12.308 Arab Standard Time WARN ][ default] - QMimeDatabase: Error loading internal MIME data
An error has been encountered at line 1 of <internal MIME data>: Premature end of document.:
[2021-03-05T16:53:12.308 Arab Standard Time CRIT ][ kf.newstuff.core] - Could not determine type of archive file ' "C:/Users/mutla/AppData/Local/Temp/asBMsq-abell_pn_1.0.zip" '

When checking the zip file above, it's a valid ZIP file and I can open it just fine.

STEPS TO REPRODUCE
1. Open KStars on Windows 10
2. Go to Data --> Download New Data
3. Try to download any catalog and it would say "File not found" error.

OBSERVED RESULT

Catalog downloaded but not installed.

EXPECTED RESULT

Catalog downloaded and installed.

SOFTWARE/OS VERSIONS

KStars built using KDE Binary Factory, so whatever used by KDE Binary Factory as of March 1st, 2021.

Windows: 10
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version:

ADDITIONAL INFORMATION