[[PageOutline]] = Troubleshooting = This page give solutions to common issues. When you have an issue, please first check that you have done all the necessary steps to have a functional environment: * [wiki:prerequisite Prerequisite] * [wiki:setup Setup your computer] * [wiki:toolchain/install Install toolchains] == problem executing a tool == If you receive a message like ''No such file or directory'' when executing FlairGCS, try recompiling all like described [wiki:compile_all here]. It can be a problem of a toolchain installed in a different location from the one who compiled the tools. == graphical problem with the simulator == * verify if your graphic drivers are well installed for the toolchain, see [wiki:toolchain/install here]. * check if ''/dev/shm'' is clean. It should not contain files like ''sem.simu_*'' or ''simu_*''. The files are shared memories between control and simulation part; they should be destroyed when all programs are closed. You can safely remove it manually if not. * if problem is still present, make [https://devel.hds.utc.fr/software/flair/newticket a new ticket] describing your problem and the output message of the simulator. == problem when updating the repositories == If you have changed something on the versioned files and if these changes are not committed, you will have a conflict when updating these files (with ''svn up command''). This can occur when you recompiled [wiki:compile_all all stuffs]. So be sure that you get the version of the files from the server when you update the repositories by answering ''tf'' to the conflict question. Otherwise, you will stay with the older versions. In doubt you can erase your local repositories and [wiki:repo/sync checkout them again], but be sure not to erase your personal work. Another solution is to [wiki:compile_all compile all] again after the update.