How do I configure GOPATH and GOROOT for Go development on Mac OS X 10.10?

Configuring GOPATH for Go Development in Mac OS X 10.10

When setting up a Go development environment in Mac OS X 10.10, you may face an error when installing Go packages due to an unset GOPATH. This comprehensive guide addresses this issue by explaining how to properly set GOROOT, PATH, and GOPATH for Go operations.

1. Setting GOROOT and PATH

Ensure that GOROOT points to the directory where Go is installed, not the executable itself. The following commands illustrate the correct syntax:

2. Configuring GOPATH

GOPATH should reference a directory containing the src, pkg, and bin folders, instead of the src folder directly. Refer to the article "How to Write Go Code - Workspace" for more information.

3. Common Issues and Troubleshooting

• Set GOPATH in ~/.bashrc: Use export to set GOPATH in your shell configuration file.
• Verify bash shell: Confirm that you're using the bash shell (not fish or others).
• Check go env output: Examine the output of go env to verify the current settings.
• Avoid sudo go get: Execute go get without sudo to prevent environment variable conflicts.
• Use sudo with caution: If using sudo to install packages, employ sudo -E bash -c 'go get ...'. However, root privileges are typically unnecessary for package installation.

Remember to ensure that all paths are properly set and checked. This guide outlines a systematic approach to establishing a functional Go development environment on Mac OS X 10.10, enabling you to effectively work with Go packages and extend your projects.

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