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Troubleshooting

Typical Nuclos problems and solutions – object import, rules, nuclet export and killing the process.

REFERENZ DEVELOPER STAND: JUL 2026 GILT FUER NUCLOS 4.2026.X

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Collection of typical problems during operation and development of Nuclos – with solutions.

Problem	Solution
Object import hangs at „waiting for status“	Ensure the server is not in maintenance mode and jobs can run; if the scheduler is affected, restart the server.
Faulty rules block each other on saving	Disable automatic compilation, fix all rules, then re-enable it.
A nuclet cannot be exported (missing in the wizard)	In the DB, set `blnsource = true` for the nuclet in `t_ad_application`.

Force-kill the process (Linux)

ps aux | grep -i <path_to_nuclos>
kill <tomcat_pid>   # if needed kill -9

IDE errors.