Solved
Need to copy modules into a /modules folder in project root (as for earlier versions required I only places the files in the titanium modules folder).
Thx @Thomas Weber!
So in Studio > Help > Install Mobile Module the output location has to be "Mobile App Project" and not "Titanium SDK".
Thomas Weber
[ERROR] : ** BUILD FAILED **
[ERROR] : The following build commands failed:
[ERROR] : PBXCp /Users/.../Documents/Appcelerator_Studio_Workspace/ARTest7/modules/iphone/com.wikitude.ti/7.0.0/platform/WikitudeSDK.framework build/Products/Debug-iphonesimulator/ARTest7.app/Frameworks/WikitudeSDK.framework
[ERROR] : (1 failure)
Titanium SDK 6.1.1GA / 6.0.4GA
How to fix this problem?Locri