"Cannot Move App Not Enough Storage Space" Error Message
I think this is the first time you have added a SD card ?.
Open Settings - Storage and check if you can see the the storage space details. If not ,you must Mount your SD card by a button there, after that you can move files or apps to SD card without error.

Another issue could be that your SD card was not recognised (always showing 0Mb) because android or user settings are wrong. Hopefully this helped you