I am sorry to inform you, that Vuforias postproccessbuilding is conflicting with the GoogleAnalyticsSDK from the asset store.
I tracked it down to their SDKBOX/googleanalytics/Editor/setup.cs.
If this file exists a build to iOS will fail, stating something about index out of bounds in vufurias post process.
I guess you can reproduce it by installing both and then try to build to iOS.
Any idea for a quick fix?
6 (from this site, NOT from the asset store)