#summary Description and list of engine error codes

= Engine error codes =

When the Hedgewars engine (`hwengine`) crashes or is closed, it returns an exit code (or error code) which can be used to further analyze the problem.

== List of engine error codes ==

This is the list of all possible error codes:

|| *Exit code* || *Meaning* || *Description* || *Solution* ||

|| 0 || No error || Engine exited normally || N/A ||

|| 52 || Fatal error || Generic error for critical errors. Commonly happens when a critical file like an image was not found || Check the error message or the end of `Logs/game0.log` in your [http://hedgewars.org/wiki/User_directory user directory] for clues ||

|| 53 || Startup error || Failure while initializing stuff on startup, like graphics, shader, OpenGL stuff, etc. || Check your [Dependencies] and if you have the latest drivers installed and update them as needed ||

|| 54 || Fatal error, no IPC socket || Similar to error 52, but the IPC socket is not working for some reason || Check the end of `Logs/game0.log` in your [http://hedgewars.org/wiki/User_directory user directory] for clues ||

|| Other || Free Pascal run-time error. This is probably a bug || See [https://www.freepascal.org/docs-html/user/userap4.html Free Pascal run-time errors] || [http://www.hedgewars.org/bugs Report a bug], then someone should fix it ||

== Error codes when performing engine test cases ==

When the engine is used to perform [EngineTestCases test cases], the follwing additional codes are used:

|| *Exit code* || *Meaning* || *Solution* ||

|| 0 || Test succeeded || N/A ||

|| 60 || Test failed || Fix the engine ||

|| 61 || Lua error in test case || Fix the Lua code of the test case ||

|| 62 || Unexpected error while testing || Debug ||

= Source code =

The exit codes are defined in `[https://hg.hedgewars.org/hedgewars/file/tip/hedgewars/uConsts.pas hedgewars/uConsts.pas]`.