I am running macOS v10.12 (Sierra) and was working on this for a while (trying all recommended solutions). I became confounded, so I eventually tried restarting my computer! It worked.
My conclusion is that sometimes a hard reset is necessary.
I am running macOS v10.12 (Sierra) and was working on this for a while (trying all recommended solutions). I became confounded, so I eventually tried restarting my computer! It worked.
My conclusion is that sometimes a hard reset is necessary.