found three indigo's on my disk cleaned up and now =one is running. Sorry for the bothering, thanks for the swift reply, I am going to try it.

So I did and installed it in the plugin folder and then replaced it to the Applications folder as suggesteted in one of the forum-articles, but still the same question for indigo.app when starting Sketchup.

Cannot run indigo on mac osx because it wants me to locate indigo.app wich is nowhere to be found in the downloaded items. trough SkIndigo-2.2.12.zip or ist unzipped result.