ValueError: unsupported hash type md5

Error Info: On RLAB 128 setup, pybot cmd will be failed. 

5 write pybot commands to '/tftpboot/atx/atxuser/SB_Logs_06012016-090109/ROBOT/pybotcmd.txt' and execute ... 
pybot --argumentfile /tftpboot/atx/atxuser/SB_Logs_06012016-090109/ROBOT/available_test_argument_FPLT-A.txt --debugfile /tftpboot/atx/atxuser/SB_Logs_06012016-090109/ROBOT/FPLT-A_debug.txt --exclude max_rel_r2.* --exclude max_rel_r3.* --exclude max_rel_r4.* --exclude max_rel_r5.0* --exclude max_rel_r5.1* --exclude max_rel_r5.2* --exclude max_rel_r5.3* --exclude min_rel_r5.4.01 --exclude min_rel_r5.4.02 --exclude min_rel_r5.4.03 --exclude min_rel_r5.5* --exclude min_rel_r5.6* --exclude min_rel_r5.7* --exclude min_rel_r5.8* --exclude min_rel_r5.9* --exclude min_rel_r6.* --exclude min_rel_r9.9 --exclude not_fplt-a --include weekly --log FPLT-A_log.html --loglevel debug --output FPLT-A_output.xml --outputdir /tftpboot/atx/atxuser/SB_Logs_06012016-090109/ROBOT --report FPLT-A_report.html --skipteardownonexit --variable BUILD:54.383 --variable LOOPTYPE:LT --variable LT:FPLT-A --variable RELEASE:5.4 /repo/atxuser/robot/ATS/EPON_DPOE 
ERROR:root:code for hash md5 was not found. 
Traceback (most recent call last): 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 147, in 
globals()[__func_name] = __get_hash(__func_name) 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor 
raise ValueError('unsupported hash type ' + name) 
ValueError: unsupported hash type md5 
ERROR:root:code for hash sha1 was not found. 
Traceback (most recent call last): 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 147, in 
globals()[__func_name] = __get_hash(__func_name) 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor 
raise ValueError('unsupported hash type ' + name) 
ValueError: unsupported hash type sha1 
ERROR:root:code for hash sha224 was not found. 
Traceback (most recent call last): 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 147, in 
globals()[__func_name] = __get_hash(__func_name) 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor 
raise ValueError('unsupported hash type ' + name) 
ValueError: unsupported hash type sha224 
ERROR:root:code for hash sha256 was not found. 
Traceback (most recent call last): 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 147, in 
globals()[__func_name] = __get_hash(__func_name) 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor 
raise ValueError('unsupported hash type ' + name) 
ValueError: unsupported hash type sha256 
ERROR:root:code for hash sha384 was not found. 
Traceback (most recent call last): 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 147, in 
globals()[__func_name] = __get_hash(__func_name) 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor 
raise ValueError('unsupported hash type ' + name) 
ValueError: unsupported hash type sha384 
ERROR:root:code for hash sha512 was not found. 
Traceback (most recent call last): 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 147, in 
globals()[__func_name] = __get_hash(__func_name) 
File "/repo/atxuser/robot/PACKAGES/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor 
raise ValueError('unsupported hash type ' + name) 
ValueError: unsupported hash type sha512 

Analysis: