"gclient sync" issue

[Oleksii Kadurin]

Hi! I'm trying to install the chromium project first time on a new Windows OS. (I have successful experience, but on another instance.)
I successfully installed dep_tools, then ran "fetch --nohooks --no-history chromium" and at some point I stopped it
and ran then "gclient sync -j1 -v" to see some logs.

It downloaded about 15GB and at the end it outputted:

[0:52:09]  = [up to date]      nougat-release          -> origin/nougat-release
[0:52:09]  = [up to date]      upstream-vulkan-cts-1.0-dev -> origin/upstream-vulkan-cts-1.0-dev
[0:52:12] Checked out f4f3d8079e7a37d7675ab93583e6438d0bca0e58 to a detached HEAD. Before making any commits
in this repo, you should use 'git checkout <branch>' to switch to
an existing branch or use 'git checkout origin -b <branch>' to
create a new branch for your work.
[0:52:12] Finished.
----------------------------------------


________ running 'C:\depot_tools\python276_bin\python.exe src/build/landmines.py' in 'C:\chromium'






Please follow the instructions at https://www.chromium.org/developers/how-tos/build-instructions-windows




Traceback (most recent call last):
  File "src/build/landmines.py", line 138, in <module>
    sys.exit(main())
  File "src/build/landmines.py", line 125, in main
    gyp_environment.SetEnvironment()
  File "C:\chromium\src\build\gyp_environment.py", line 30, in SetEnvironment
    vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs()
  File "C:\chromium\src\build\vs_toolchain.py", line 46, in SetEnvironmentAndGetRuntimeDllDirs
    Update()
  File "C:\chromium\src\build\vs_toolchain.py", line 360, in Update
    subprocess.check_call(get_toolchain_args)
  File "C:\depot_tools\python276_bin\lib\subprocess.py", line 540, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['C:\\depot_tools\\python276_bin\\python.exe', 'C:\\depot_tools\\win_toolchain\\get_toolchain_if_necessary.py', '--output-json', 'C:\\chromium\\src\\build\\win_toolchain.json', 'd5dc33b15d1b2c086f2f6632e2fd15882f80dbd3']' returned non-zero exit status 1
Error: Command 'C:\\depot_tools\\python276_bin\\python.exe src/build/landmines.py' returned non-zero exit status 1 in C:\chromium

Then I ran the command again. And output is almost the same:

C:\chromium>gclient sync
Syncing projects: 100% (77/77), done.


________ running 'C:\depot_tools\python276_bin\python.exe src/build/landmines.py' in 'C:\chromium'






Please follow the instructions at https://www.chromium.org/developers/how-tos/build-instructions-windows




Traceback (most recent call last):
  File "src/build/landmines.py", line 138, in <module>
    sys.exit(main())
  File "src/build/landmines.py", line 125, in main
    gyp_environment.SetEnvironment()
  File "C:\chromium\src\build\gyp_environment.py", line 30, in SetEnvironment
    vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs()
  File "C:\chromium\src\build\vs_toolchain.py", line 46, in SetEnvironmentAndGetRuntimeDllDirs
    Update()
  File "C:\chromium\src\build\vs_toolchain.py", line 360, in Update
    subprocess.check_call(get_toolchain_args)
  File "C:\depot_tools\python276_bin\lib\subprocess.py", line 540, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['C:\\depot_tools\\python276_bin\\python.exe', 'C:\\depot_tools\\win_toolchain\\get_toolchain_if_necessary.py', '--output-json', 'C:\\chromium\\src\\build\\win_toolchain.json', 'd5dc33b15d1b2c086f2f6632e2fd15882f80dbd3']' returned non-zero exit status 1
Error: Command 'C:\\depot_tools\\python276_bin\\python.exe src/build/landmines.py' returned non-zero exit status 1 in C:\chromium


C:\chromium>

The versions of node and python are as follows:

c:\chromium>node -v
v6.9.2


c:\chromium>python --version
Python 2.7.6

Any ideas why it happens? 
Thanks for reply!

[PhistucK]

Re-post this to chromium-dev, as this group is only about the Developer Tools feature, not about browser development.​

☆PhistucK

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[Oleksii Kadurin]

I got it. Thank you!