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APM ACC upgrade using fails with an error message.


Article ID: 7908


Updated On:


CA Application Performance Management Agent (APM / Wily / Introscope) INTROSCOPE


  An APM Command Center Server (ACC) upgrade with fails with this error message. (The version information may vary according to your environment.):

[ERROR] Upgrade failed: Version of the tool from the package provided is lower than the current one ( < Downgrades are not supported.


 Version comparison is implemented as lexicographical instead of numerical comparison. Therefore “ <” is assumed and the installation aborts.



APM 10.5.2.


  Override the version to upgrade from by using

This helps by overriding the old version string used for checking.

The steps to do this are below:

1. Open with an editor

2. Add a line “ \” to the $JAVA_CMD string at the end of the file.

3. Save the file.


4. Verify that the whole command should now read:



-DTAR_PATH="`which tar`" \



-jar /tmp/acc-upgradetool.jar $*

Additional Information

This issue will be fixed in a future version or service pack of CA APM.