Grayed out folder won't open in finder

I had the same issue with an account folder, which I restored from a backup via rsync. The problem seemed to be the corrupt or missing creation date. After setting it manually the folder was acting normal again. I used the SetFile command from XCode's command line tools. So this should solve the issue:

SetFile -d '12/31/1999 23:59:59' will-not-open

Super Quick Fix:

1. Right click on the "grayed out folder" and make an Alias of the folder that is "greyed out"

2. Click on the alias and you get right in.

3. Next move the files and folders out of the "Grayed out" folder into a "new folder". Command + drag the contents to the "new folder" (It may ask you for your password to make the move.

4. Trash the now empty "grayed out" folder and rename the "new folder" to the name the "grayed out" folder used to have... Fixed 🙂

This works:

mkdir move
mv will-not-open/* move/
rm -rf will-not-open/
mv move will-not-open