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= Troubleshooting =

== 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 graphic drivers are among 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.