Crash when compiling UProperty on OSX 10.12

when attempting to compile any c++ with UProperty(BlueprintReadWrite) the editing enviroment will crash instantly and will then crash whenever the project is reopened it will instanty crash before the edit is loaded.
Laptop Specs
intel i5 1.8Ghz
Intel HD Graphics 6000 1536 MB
250GB pci ssd
(13-inch, 2017) Macbook Air
(1440 x 900)