Fix for: `Command '/usr/bin/python src/build/linux/sysroot_scripts/install-sysroot.py --running-as-hook' returned non-zero exit status 1 in /root/chromium-src`. As part of some R&D for a JS framework I have been thinking of for a while I needed to do some Chromium hacking, problem is I hit a wall just simply attempting to check out the source code. This was on a fresh Debian VM machine following the official checkout docs . root@lh1:~/chromium-src# fetch --no-history chromium Running: gclient root Running: gclient config --spec 'solutions = [ { "url": "https://chromium.googlesource.com/chromium/src.git", "managed": False, "name": "src", "deps_file": ".DEPS.git", "custom_deps": {}, }, ] ' Running: gclient sync --no-history Error: Command '/usr/bin/python src/build/linux/sysroot_scripts/install-sysroot.py --running-as-hook' returned non-zero exit status