LoggedInUser.EmailAddress not working

FIND User WHERE User.EmailAddress=LoggedInUser.EmailAddress

Above statement is Not working. getting below error
Unable to find LoggedInUser

How to get current loggedin user and get User object from it. I was able to get it working hardcoded--

FIND User WHERE User.EmailAddress='hardcoded' works

Its working! It was my mistake. I was logged in as administrator and not user.

FIND User WHERE User.EmailAddress=LoggedInUser.EmailAddress

LoggedInUser works for Users but not for administrator user somehow...

try ...

LoggedInRegularUser.EmailAddress

If you have more than one BO in the SystemUser BO Group and want the your scenario to work no matter which BO they are in, try this:

FIND User WHERE User.EmailAddress=LoggedInSystemUser.EmailAddress

Thank you!