Hey guys, I've got a few concerns when moving arduino into community. Lately we could solve most bugs, but those require some manual installation steps that I want to explain here, and those possibly need additional information on the front page: Some (very old) arduino installations (somehow) left over the empty path /usr/share/arduino/hardware/avr which will cause a crash with the new arduino installation: java.io.FileNotFoundException: /usr/share/arduino/hardware/arduino/avr/platform.txt (No such file or directory) -> To resolve this issue you need to remove arduino and manually delete the folder. You might also want to check if there are any other folder zombies inside the arduino path. If this still does not help it might also be an idea to delete (backup before) ~/.arduino15 The 2nd issue is when people try to upgrade from an older version of arduino that provided arduino-builder. It will fail to install as the new version says "oh, arduino-builder is already installed". It then tries to remove arduino and the arduino-builder dependency is not satisfied anymore. This only affects a small number of versions, but still raise up on AUR. I am not sure if this got fixed in pacman by now. -> To resolve this issue you need to remove arduino first and then reinstall it. The version issue that some of you got seems to be only the case when you use a 3rd party tool like arturo. It got fixed now. Arduino now uses the upstream avr-gcc within the optional package arduino-avr-core which should be installed if you want to use avr boards. You can still use their older avr-gcc 4.9, see the wiki for more details. Since such many upgrade problems raised up, I think it is highly recommended to sum those up in a short news at archlinux.org and then push arduino to community. While people will likely have to remove their existing installation, I think it would also make sense to get rid of the current epoche value at the same time when it moves to community. As an alternative we could also rename arduino to arduino-ide and add a replace into the PKGBUILD. I am also working on getting the build system fix into upstream and also to sign their upstream sources. Thanks a lot for all the feedback so far from AUR and IRC! To sum up, the news should contain: * Remove arduino manually first * Delete /usr/share/arduino/hardware/avr if it still exists * check for other folder zombies in /usr/share/arduino * Install arduino * Consider to install the new optional deps arduino-avr-core and arduino-docs * Consider to also to start with a clean ~/.arduino15 folder if any other problem occurs * Read the wiki about further details or contact me personally Any comments on that? Cheers, Nico