There is no workaround to avoid dependency of UDF on model while replacing model dependent model with an existing UDF in model tree.
Make sure that "pro_group_dir" config.pro option is set correctly to the folder containing all the UDF group files and reference assemblies before performing a UDF replace.
Possible way is the one TSE/customer discussed in call i.e. to improve workflow of Toolkit application to make necessary reference model available to eliminate error “Replacement aborted”.
