Error when trying to edit vehicles.meta

[ckacmaster 1]

I'm trying to replace a line in the vehicles.meta file with the assembly.xml file but though the package claims to install successfully, I get these error messages in the installation log file:  

[2018-10-06 2:46:45 AM] [3084] INFO  -> Unknown archive action at node: "content>"
[2018-10-06 2:46:45 AM] [3084] INFO  -> Unknown archive action at node: "content>archive>"
[2018-10-06 2:46:45 AM] [3084] INFO  -> Unknown archive action at node: "content>archive>xml"
[2018-10-06 2:46:45 AM] [3084] INFO  -> Unknown archive action at node: "content>archive>"

Here is the bit that is causing the issue

    <archive path="update/update.rpf" createIfNotExist="True" type="RPF7">
      <xml path="common/data/levels/gta5/vehicles.meta">
        <replace xpath="/CVehicleModelInfo__InitDataList/InitDatas/Item/modelName[.=adder]/../PovCameraOffset">
          <PovCameraOffset x="0.000000" y="-0.190000" z="0.570000" />
        </replace>
      </xml>
    </archive>

When I find the PovCameraOffset in the appropriate vehicles.meta file, it is unchanged - nothing was replaced by the OpenIV installer.

<PovCameraOffset x="0.000000" y="-0.190000" z="0.630000" />

I'd really appreciate some help. Thanks in advance!

Edited October 6, 2018 by ckacmaster

[OpenIV Team 310]

Could you please provide full code of assembly.xml ?