Hello,
This is Seo. I got some errors while building the multichain 2.0 source from 2.0-dev as follows:
on new installed Ubuntu 18.10, I followed readme.md and v8.md
1.
| ../../src/profiler/tracing-cpu-profiler.cc:26:3: error: use of undeclared identifier 'TRACE_EVENT_WARMUP_CATEGORY' TRACE_EVENT_WARMUP_CATEGORY(TRACE_DISABLED_BY_DEFAULT("v8.cpu_profiler"));
 ^
 ../../src/profiler/tracing-cpu-profiler.cc:27:3: error: use of undeclared identifier 'TRACE_EVENT_WARMUP_CATEGORY'
 TRACE_EVENT_WARMUP_CATEGORY(
 ^
 2 errors generated.
 | 
2. (after commenting)
| ../../src/tracing/tracing-category-observer.cc:22:3: error: use of undeclared identifier 'TRACE_EVENT_WARMUP_CATEGORY' TRACE_EVENT_WARMUP_CATEGORY(TRACE_DISABLED_BY_DEFAULT("v8.runtime_stats"));
 ^
 ../../src/tracing/tracing-category-observer.cc:23:3: error: use of undeclared identifier 'TRACE_EVENT_WARMUP_CATEGORY'
 TRACE_EVENT_WARMUP_CATEGORY(
 ^
 ../../src/tracing/tracing-category-observer.cc:25:3: error: use of undeclared identifier 'TRACE_EVENT_WARMUP_CATEGORY'
 TRACE_EVENT_WARMUP_CATEGORY(TRACE_DISABLED_BY_DEFAULT("v8.gc_stats"));
 ^
 ../../src/tracing/tracing-category-observer.cc:26:3: error: use of undeclared identifier 'TRACE_EVENT_WARMUP_CATEGORY'
 TRACE_EVENT_WARMUP_CATEGORY(TRACE_DISABLED_BY_DEFAULT("v8.ic_stats"));
 ^
 4 errors generated.
 | 
3. (after commenting, and then It went forward well, at last, when I typed "mc20@ubuntu:~/multichain/v8build$ python $MULTICHAIN_HOME/depends/v8_data_lib.py")
| 2019-01-16 14:05:01,797 INFO    v8_data_lib - Build v8_data.lib from .bin and .dat files 2019-01-16 14:05:01,797 INFO      Path:     /home/mc20/multichain/v8build/v8/out.gn/x64.release
 2019-01-16 14:05:01,798 INFO      Platform: linux2
 2019-01-16 14:05:01,858 INFO    nasm -f elf64 -o obj/natives_blob.o natives_blob.s
 Traceback (most recent call last):
 File "/home/mc20/multichain/depends/v8_data_lib.py", line 101, in <module>
 sys.exit(main())
 File "/home/mc20/multichain/depends/v8_data_lib.py", line 96, in main
 process_bin_files(options.platform)
 File "/home/mc20/multichain/depends/v8_data_lib.py", line 56, in process_bin_files
 obj_names.append(process_bin_file(f, platform))
 File "/home/mc20/multichain/depends/v8_data_lib.py", line 48, in process_bin_file
 call(cmd)
 File "/usr/lib/python2.7/subprocess.py", line 172, in call
 return Popen(*popenargs, **kwargs).wait()
 File "/usr/lib/python2.7/subprocess.py", line 394, in __init__
 errread, errwrite)
 File "/usr/lib/python2.7/subprocess.py", line 1047, in _execute_child
 raise child_exception
 OSError: [Errno 2] No such file or directory
 | 
I couldn't finish that work. So I need your help.
Thank you!