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Josh Triplett edited this page Sep 2, 2018
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Welcome to the rustup.rs wiki!
if you get a mysterious error: no default toolchain configured, make sure you define $RUSTUP_HOME, eg:
export RUSTUP_HOME=$HOME/.rustup
this was the root cause of brew install ripgrep failing with error: no default toolchain configured even though rust was properly installed, because brew redefines HOME during installation: see https://github.com/Linuxbrew/homebrew-core/pull/1762