I got an error log when I tried "make" in the manual directory. I got this: ====> Generating doxygen-output/xml/group__GeneralSystemCalls.xml ====> Generating doxygen-output/xml/group__DebuggingSystemCalls.xml ====> Generating doxygen-output/xml/group__BenchmarkingSystemCalls.xml ====> Generating doxygen-output/xml/group__ObjectApiX86.xml ====> Generating doxygen-output/xml/group__ObjectApiArm.xml ====> Generating doxygen-output/xml/group__ObjectApiAarch32.xml ====> Generating doxygen-output/xml/group__ObjectApiAarch64.xml ====> Generating doxygen-output/xml/group__ObjectApiIa32.xml ====> Generating doxygen-output/xml/group__ObjectApiX64.xml ====> Generating generated/GeneralSystemCalls.tex Traceback (most recent call last): File "tools/parse_doxygen_xml.py", line 327, in <module> sys.exit(main()) File "tools/parse_doxygen_xml.py", line 321, in main output_str = generate_general_syscall_doc(args.input, args.level) File "tools/parse_doxygen_xml.py", line 276, in generate_general_syscall_doc details, params, ret = parse_detailed_desc(member, ref_dict) File "tools/parse_doxygen_xml.py", line 157, in parse_detailed_desc ret_type = types_iter.next() AttributeError: 'list_iterator' object has no attribute 'next' make: *** [Makefile:126: generated/GeneralSystemCalls.tex] Error 1