Hi, I figured out why I got these build errors every now and then: | ==> Making package: haskell-haxml 1.20.2-1 (Sun Oct 24 12:24:41 UTC 2010) | ==> Checking Runtime Dependencies... | ==> Installing missing dependencies... | resolving dependencies... | looking for inter-conflicts... | | Targets (1): haskell-polyparse-1.4-1 | | Total Download Size: 0.00 MB | Total Installed Size: 2.34 MB | | Proceed with installation? [Y/n] | checking package integrity... | :: File haskell-polyparse-1.4-1-i686.pkg.tar.xz is corrupted. Do you want to delete it? [Y/n] | error: failed to commit transaction (invalid or corrupted package) | haskell-polyparse-1.4-1-i686.pkg.tar.xz is invalid or corrupted | Errors occurred, no packages were upgraded. | ==> ERROR: 'pacman' failed to install missing dependencies. | Build failed, check /home/simons/src/archhaskell-build/chroot-i686/copy/build | Begin building haskell-non-negative... | :: Synchronizing package databases... | core is up to date | extra is up to date | community is up to date | repo is up to date | :: Starting full system upgrade... | there is nothing to do What happened is that I built the binary package, and installed it. At that point, haskell-polyparse-1.4-1-i686.pkg.tar.xz had been cached in /var/cache/pacman/pkg. Later, I built the package again (because I was testing the build system), and this lead to two different versions of the same archive being available to Pacman, hence the inconsistency. Wiping /var/cache/pacman/pkg fixed the problem for good. Take care, Peter