Why am I getting the 'compile: version 'go1.9' does not match go tool version 'go1.9.1'' error message?

Error Message: Version Mismatch During Compilation

When attempting to compile a code sample, users may encounter the error message "compile: version 'go1.9' does not match go tool version 'go1.9.1'". This error stems from a discrepancy between the compiler's expected version ('go1.9') and the installed version of the Go programming tool ('go1.9.1').

Understanding the Issue

The error suggests that the compilation process requires the 'go1.9' version of the compiler, but the system has the 'go1.9.1' version installed. This mismatch prevents the compiler from successfully executing the compilation.

Resolving the Discrepancy

To resolve this issue, ensure that the installed version of Go matches the version specified in the compilation request. Several approaches can be used depending on the operating system and installation method:

OSX Homebrew Installation

For OSX users who installed Go using Homebrew, the $GOROOT environment variable needs to be set in the user's shell configuration (e.g., .bashrc or .zshrc):

export GOROOT=/usr/local/opt/go/libexec

Other Operating Systems

For other operating systems, refer to the official Go installation documentation to verify that the correct version is installed and that the $GOROOT variable is set appropriately.

Additional Considerations

Initially, some users believed this issue could be a bug. However, it is not a bug. The error arises because the compiler strictly requires a specific version of the Go tool. Therefore, it is essential to ensure that the installed version of Go aligns with the specified compilation version.

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