Hello, The Jenkins slaves had grunt-cli provisioned which is often used by the npm test command. If you get a Jenkins job to fail with: sh: 1: grunt: not found Simply add grunt-cli to your project devDependencies and the next build have it installed. Example: https://gerrit.wikimedia.org/r/#/c/275823/1/package.json,cm The change removing grunt-cli is: https://gerrit.wikimedia.org/r/#/c/280974/ -- Antoine "hashar" Musso