Install of nextcloud@30.0.11 Failed: Migration Failed: Error: The migration for v29 did not complete. Please start the service and wait for all health checks to pass before updating to v30. at migration (file:///embassy.js:4311:15) at eventLoopTick (ext:core/01_core.js:183:11) at async file:///loadModule.js:240:18
Are you updating from Nextcloud 29.0.14? It is very important not to skip any version when updating Nextcloud.
Also, trying the tip provided in the error might help:
“Please start the service and wait for all health checks to pass before updating to v30”
Make sure the service is running correctly before going ahead with the update.