6.2 File Extensions changed in 10.13.3

[kbareis]

When I run the following command, terminal says the key pair no longer exists.
defaults read /Users/"$currentUser"/Library/Preferences/com.apple.finder AppleShowAllExtensions

Error:
The domain/default pair of (/Users//Library/Preferences/com.apple.finder, AppleShowAllExtensions) does not exist

[ttyler]

/User//Library

If you want to run this command, assign currentUser to your name first.
Ie
currentUser=“kbareis”