A problem of SemanticResolution

[guyul]

I got this problem when I using UiRef (after extracting the layouts), could you please tell me how to figure it out?

Starting /ext/layouts/com.fueneco.talking.photos/layouts/com.fueneco.talking.photos_7f03000a.xml
Starting /ext/layouts/com.fueneco.talking.photos/layouts/com.fueneco.talking.photos_7f030006.xml
Avg time = 13.923076923076923 total = 181.0 13
Running UiRef
Loaded 13 layouts
Traceback (most recent call last):
File "/src/SemanticResolution/SemanticsResolver.py", line 234, in
main()
File "/src/SemanticResolution/SemanticsResolver.py", line 227, in main
resVals = resolver.resolveLayout(apk, viewHierarchy)
File "/src/SemanticResolution/SemanticsResolver.py", line 119, in resolveLayout
for v in viewHierarchy.getOrdered():
File "/src/SemanticResolution/LayoutParser.py", line 103, in getOrdered
sorted_vals = sorted([(v.t, v.l, v) for v in self.hierarchy if v.counter not in labelIds])
TypeError: '<' not supported between instances of 'ViewObject' and 'ViewObject'