jbonofre opened a new issue, #2265:
URL: https://github.com/apache/karaf/issues/2265
When starting Karaf instance (simply with `bin/karaf`), a warning is
displayed on the console:
```
org.ops4j.pax.logging.pax-logging-log4j2 [log4j2] ERROR : Log4J2
configuration problem: No type attribute provided for component out
2026-02-04T18:04:52.406495Z CM Configuration Updater (ManagedService Update:
pid=[org.ops4j.pax.logging]) ERROR Log4J2 configuration problem: No type
attribute provided for component out
org.apache.logging.log4j.core.config.ConfigurationException: No type
attribute provided for component out
at
org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.createComponent(PropertiesConfigurationBuilder.java:362)
at
org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.processRemainingProperties(PropertiesConfigurationBuilder.java:206)
at
org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.build(PropertiesConfigurationBuilder.java:190)
at
org.apache.logging.log4j.core.config.properties.PropertiesConfigurationFactory.getConfiguration(PropertiesConfigurationFactory.java:56)
at
org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.configureLog4J2(PaxLoggingServiceImpl.java:520)
at
org.ops4j.pax.logging.log4j2.internal.PaxLoggingServiceImpl.updated(PaxLoggingServiceImpl.java:341)
at
org.ops4j.pax.logging.log4j2.internal.LoggingManagedService.updated(LoggingManagedService.java:37)
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189)
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152)
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85)
at
org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.provide(ConfigurationManager.java:1131)
at
org.apache.felix.cm.impl.ConfigurationManager$ManagedServiceUpdate.run(ConfigurationManager.java:1087)
at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:122)
at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:84)
at java.base/java.lang.Thread.run(Thread.java:829)
```
The default configuration has to be updated to avoid that.
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