Try skipping that. I didn't have a frameworks folder either because I had already deleted mine previously.
Just try pasting this in terminal. Just ignore any errors
1. sudo chmod -R ug=rwx,o=rx /Applications/Adobe
sudo chmod -R ug=rwx,o=rx ~/Library/Application\ Support/Adobe/
sudo chmod -R ug=rwx,o=rx ~/Library/Application\ Support/Adobe/AIR/
sudo chmod -R ug=rwx,o=rx /Users/Shared/Library/Application\ Support/Adobe/
2. whoami
3. sudo chown -R username:staff ~/Library/Application\ Support/Adobe/AIR/
In step 3, replace username with your username
Then try installing