How to Set the $GOPATH Variable Permanently on Mac OSX?

Troubleshooting "Cannot set $GOPATH on Mac OSX"

When attempting to run example code using the command 'smitego-example go run main.go,' an error message indicates that the $GOPATH variable is not set. This article provides a comprehensive guide to setting the $GOPATH variable permanently on Mac OSX.

Solution for Go 1.8 and Later

Starting with Go 1.8, the Go toolchain automatically determines the $GOPATH, setting it to $HOME/go on Mac OSX. This simplifies the process of getting started with Go, allowing users to install packages with 'go get ' immediately after installation.

Manual Method for the Shell

For older versions of Go or for users who prefer manual configuration, the following steps should be followed:

1. Edit the ~/.bash_profile file.
2. Add the line: 'export GOPATH=$HOME/go'.
3. Add the line: 'export PATH=$GOPATH/bin:$PATH'.

Ensure that the '$' symbol is included where indicated.

Configuration for Sublime Text

Users of Sublime Text can configure the $GOPATH variable as follows:

1. Navigate to Sublime Text menu > Preferences > Package Settings > GoSublime > Settings: User.
2. Add the following JSON code:

{
        "shell": ["/bin/bash"],
        "env": {"GOPATH": "/Users/#USERNAME#/go/"},
}

Make sure to replace '#USERNAME#' with your actual username. Ensure that the GOPATH points to the root of your "go" folder (e.g., $HOME/go), not the specific package path.

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