[OS X TeX] TeXShop cannot be opened

[Murray Eisenberg]

I’m asking this for a colleague who just downloaded MacTeX-2017 to a brand new Mac that is running macOS Sierra (10.12.5).

He writes:

  "I successfully downloaded the MacTeX.pkg, the md5 command verified that the MacTeX.pkg  was undamaged. Unfortunately, when I tried to launch the program I rec’d  the error message: 'TeXShop  cannot be opened because of a problem. Check with the developer to make sure TeXShop works with this version of macOS’.”

Any idea what could be wrong?
---
Murray Eisenberg			murrayeisenberg at gmail.com
503 King Farm Blvd #101	Home (240)-246-7240
Rockville, MD 20850-6667	Mobile (413)-427-5334



----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://www.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
                https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex