I am booting from an external SSD. 2TB. In viewing the specs vis Disk Utility, I have more then 1.5 Tb free space and less than 1 gB purgeable.
Was having no probs installing then suddenly I can't install even a library that is <2gB.
I have read all the threads that I can find and tried all the recommended fixes, incl. connecting via LAN.
What am I missing?