java.lang.IllegalStateException: More than one match is found for XXXXXX
Problem
The error suggested that there are duplicate configuration objects on the target instance.
e.g:
java.lang.IllegalStateException: More than one match is found for Custom field 'Approvers, Id customfield_10103'.Solution
Rename or remove the duplicated configuration objects on the target instance so that it has a unique name.
In the example shown above, the duplicated configuration object is the field Approvers.