You are currently reviewing an older revision of this page.

DRAFT KB-XXXX Appian services fail to start with InvalidKLicenseException


Appian services fail to start with the following type of error observed in the service_manager.log:

[KomodoEventBus-16] ERROR com.appian.komodo.engine.connection.NettyKConnection - Failed to connect to channels.
com.appian.komodo.engine.connection.InvalidKLicenseException: channels failed to start due to an invalid K license.
at com.appian.komodo.engine.connection.KProcessManager.startK( ~[core-1.95.2.jar:1.95.2]


This happens when an invalid product license is used to start Appian services.


Request and install a new product license as described in this documentation.

Affected Versions

This article applies to Appian 17.3 and later.

Last Reviewed: July 2018