Traceback (most recent call last):
  File "/opt/gpcloud/gp_home/taskLib/MergeHTSeqCounts.0.7.327/mergeHTSeqCounts.py", line 250, in <module>
    main()
  File "/opt/gpcloud/gp_home/taskLib/MergeHTSeqCounts.0.7.327/mergeHTSeqCounts.py", line 53, in main
    mergeCountFiles(countTable, options.outputPrefix, sampleInfo)
  File "/opt/gpcloud/gp_home/taskLib/MergeHTSeqCounts.0.7.327/mergeHTSeqCounts.py", line 230, in mergeCountFiles
    assert len(sampleTable[r]) == 2, 'Expecting two columns found ' + len(sampleTable[r])
TypeError: cannot concatenate 'str' and 'int' objects