Problem ------- See [3][4]. Command '['snap', 'pack', '--filename', 'llvm-chromium_llvmorg-19-init-14561-gecea8371+_amd64.snap', '--compression', 'xz', PosixPath('/build/llvm-chromium/prime'), PosixPath('/build/llvm-chromium')]' returned non-zero exit status 20. or Command '['snap', 'pack', '--filename', 'llvm-chromium_llvmorg-19-init-14561-gecea8371e_amd64.snap', '--compression', 'xz', PosixPath('/build/llvm-chromium/prime'), PosixPath('/build/llvm-chromium')]' returned non-zero exit status 20. Background ---------- I've been trying to do one simple thing, namely programatically setting the version of this snap[0]. But Snapcraft really wants me to surrender. :P Block [1]: Version string is "llvmorg-19-init-14561-gecea8371-3000" but must be <= 32 bytes. Fix 1: Filter it through 'head -c32'. Block [2]: Version string is "llvmorg-19-init-14561-gecea8371-" but must end with an ASCII alphanumeric or one of '+' or '~' (and not '-'). Fix 2: Filter it through 'head -c31' and add a + to it. Block [3]: Command '['snap', 'pack', '--filename', 'llvm-chromium_llvmorg-19-init-14561-gecea8371+_amd64.snap', '--compression', 'xz', PosixPath('/build/llvm-chromium/prime'), PosixPath('/build/llvm-chromium')]' returned non-zero exit status 20. Fix 3: So for some reason I thought this might be the + and substituted it with an e. Block [4]: Command '['snap', 'pack', '--filename', 'llvm-chromium_llvmorg-19-init-14561-gecea8371e_amd64.snap', '--compression', 'xz', PosixPath('/build/llvm-chromium/prime'), PosixPath('/build/llvm-chromium')]' returned non-zero exit status 20. [0] https://launchpad.net/~chromium-team/+snap/llvm-chromium [1] https://launchpadlibrarian.net/741481652/buildlog_snap_ubuntu_noble_amd64_llvm-chromium_BUILDING.txt.gz [2] https://launchpadlibrarian.net/741581930/buildlog_snap_ubuntu_noble_amd64_llvm-chromium_BUILDING.txt.gz [3] https://launchpadlibrarian.net/741697371/buildlog_snap_ubuntu_noble_amd64_llvm-chromium_BUILDING.txt.gz [4] https://launchpadlibrarian.net/741729763/buildlog_snap_ubuntu_noble_amd64_llvm-chromium_BUILDING.txt.gz