I installed golang development envionemnt using the idea (13.1 community edition). It seems the SDK is recognized. However, I could not create the GO file by right-clicking "Create" in the source folder. (The "go" element is gray) Currently, I need to manually set the file extension to ".go" and edit the file, but autocomplete is fine. This only exists on my Mac (with version 10.9.4). I set the GOPATH directory access mode to 777, but still does not work. This works fine on windows7. So what should I do? 
This is what the windows look like. 
Thanks VonC, I already tried the /Users/Tom/go setting, this doesn't work and I switch to this root path. here my previous setting macbook:home root# go env GOARCH="amd64" GOBIN="" GOCHAR="6" GOEXE="" GOHOSTARCH="amd64" GOHOSTOS="darwin" GOOS="darwin" GOPATH="/Users/mac/go" GORACE="" GOROOT="/usr/local/go" GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64" CC="clang" GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common" CXX="clang++" CGO_ENABLED="1"
And here's what it looks like in the / Users / Tom / Go directory 
Thanks to VonC, however this will not work. I do not know the reason. This is the envionment setting using GOCODE
These are a few steps! step1





By the way, I noticed that there is a difference with the poppy and windows when creating a new Go Project at this stage the Windows platform will show the "sdk project", but the mac will not. 
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