execution the configure_wikitude_sdk_framework.sh script seems to be failing for you. I'm afraid you will need to run this in order to use our plugin, we can't simply remove the hook as a workaround.
Having had a look at the script, I can only image xcrun not being available on your machine, everything else should be plain shell commands.
Would you mind opening your terminal application and running xcrun to check whether the executable can be found.
(This will just print some help text if run without arguments if it happens to be available)