Where can I see rendering errors in Aloha Editor?

When rendering a page in preview or edit mode using Aloha Editor, the assistant bar is hidden. Rendering errors – which were usually shown in the assistant bar, are now logged using Aloha Editors Log methods.

The default implementation of the Aloha Logging logs into the Javascript Console. Therefore, rendering messages will be logged into the Javascript Console too. The log level of Aloha can be modified on the server changing log4j settings as specified:

/Node/tomcat/conf/gentics/nodelog.properties

# possible values: ERROR, WARN, INFO, DEBUG
log4j.logger.com.gentics.aloha=ERROR

Starting with Gentics CMS 5.42.0, the logging mechanism uses Log4j 2 instead of Log4j1. Therefore the logfile has now a different name and format:

/Node/tomcat/conf/gentics/nodelog.yml

Configuration
  ...
  Loggers:
    logger:
      -
        name: com.gentics.aloha
        level: error