How Do I Fix the 'cannot download, $GOPATH not set' Error in Go?

Resolving the "cannot download, $GOPATH not set" Error in Go

When attempting to install packages using "go get," you may encounter the error "cannot download, $GOPATH not set." This issue arises when the GOPATH environment variable, which specifies the location where Go packages are stored, is not set.

Setting GOPATH

To resolve this error on macOS, follow these steps:

1. Open the terminal: Launch the Terminal application from your Applications folder.
2. Set GOPATH: Type the following command in the terminal and press Enter:

export GOPATH="$HOME/your-workspace-dir/"

Replace "your-workspace-dir" with the desired location for your Go workspace directory.

3. Add to bash configuration: To make this setting permanent, add the following line to your ~/.bashrc or equivalent bash configuration file:

export GOPATH="$HOME/your-workspace-dir/"

4. Reload bash configuration: Source the updated bash configuration file using the following command:

source ~/.bashrc

Additional Considerations

• Go will install packages under the following subdirectories in the GOPATH:

  • src/ for source code
  • bin/ for compiled binaries
  • pkg/ for compiled packages
• You may consider adding the following line to your ~/.bashrc to include $GOPATH/bin in your PATH:

export PATH=$PATH:$GOPATH/bin

• To expedite navigation to package directories in bash, you can set CDPATH as follows:

export CDPATH=.:$GOPATH/src/github.com:$GOPATH/src/golang.org/x

• As an alternative, you can set GOPATH to $HOME to store Go directories directly under your home directory.

The above is the detailed content of How Do I Fix the 'cannot download, $GOPATH not set' Error in Go?. For more information, please follow other related articles on the PHP Chinese website!