Another sync failure while running client runhooks

[Md Mahbubur Rasheed]

Hi,

My system is Mac OSX 10.9.2 (mavericks). I used the following commands after syncing WebRTC -

gclient runhooks --verbose

or,

gclient runhooks --force --verbose

or

gclient sync --force --verbose

When I try  gclient sync command only, it doesn't show any error. But there is no out directory, neither Xcode project files for mac osx. 

While trying to sync WebRTC for both Mac OSX and Android following the instruction from the official site, I get the following error-

1. ________ running '/usr/bin/python trunk/tools/clang/scripts/update.py --if-needed' in '/Users/megamind/programming/webrtc'

   Clang already at 202554-3

   
   

   ________ running 'download_from_google_storage --directory --recursive --num_threads=10 --no_auth --bucket chromium-webrtc-resources trunk/resources' in '/Users/megamind/programming/webrtc'

   /Users/megamind/programming/depot_tools/third_party/boto/pyami/config.py:75: UserWarning: Unable to load AWS_CREDENTIAL_FILE ()

     warnings.warn('Unable to load AWS_CREDENTIAL_FILE (%s)' % full_path)

   Failure: 'NoneType' object is not callable.

   ...........

   ...........

   ...........
   Error: Command download_from_google_storage --directory --recursive --num_threads=10 --no_auth --bucket chromium-webrtc-resources trunk/resources returned non-zero exit status 1 in /Users/megamind/programming/webrtc
2. Hook 'download_from_google_storage --directory --recursive --num_threads=10 --no_auth --bucket chromium-webrtc-resources trunk/resources' took 126.92 secs

 

The whole log is available at http://pastebin.com/HZ6SDiAt . While I have found several similar cases online, I couldn't find any definite solution. I resynced  depot_tools. I modified the .gclient config file by adding/removing target_os = ['mac', 'android', 'unix'] .  

How can I solve this issue? Thanks in advance. :)

[Md Mahbubur Rasheed]

No takers? Is it only I who is facing this problem? 

I reinstalled Xcode, xcode command line tools, resynced the WebRTC trunk, but no luck. Any idea how I can at least check where the problem might be?

[SProgrammer]

FYI - They said in this page: https://code.google.com/p/chromium/wiki/AndroidBuildInstructions , that Mac is not supported use Ubuntu 12.04 64-bit and try the following script to build latest revision and please post your results, so that everybody sees its same for me not working either yet, old revision get build but they are pointless cause not working in smartphone/emulators.

#!/bin/bash


### Issues:
# 1) http://ubuntuforums.org/showthread.php?t=2182653  
# 2) GYP_DEFINES use host_os and host_arch
# 3) no we do not support Mac, Windows Good, but Linux also not working, which one then do you support?https://code.google.com/p/chromium/wiki/AndroidBuildInstructions
# 4) Use OpenJDK 6 (not 7 not 8)


#sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
#oracle-java7-installer
sudo apt-get install git subversion gcc g++ openjdk-7-jdk
sudo update-alternatives --config javac
sudo update-alternatives --config java
sudo update-alternatives --config javaws
sudo update-alternatives --config javap
sudo update-alternatives --config jar
sudo update-alternatives --config jarsigner


rm -fr ~/git
mkdir -p ~/git/working
cd ~/git/working
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
rm -fr ~/.bash_aliases
echo "PATH=$PATH:$HOME/git/working/depot_tools" >> ~/.bash_aliases
. ~/.bash_aliases


gclient config http://webrtc.googlecode.com/svn/stable/
echo "target_os = ['android', 'unix']" >> .gclient
# this revision get build success but useless does not work in Smartphone or Emulator
#gclient sync --nohooks --revision r4699
# tried revision but all failed
#gclient sync --nohooks --revision r6039
#gclient sync --nohooks --revision r6001
#gclient sync --nohooks --revision r5540


# take a vacation and come back later to see it completes
gclient sync --nohooks




source ~/git/working/stable/build/android/envsetup.sh
export GYP_DEFINES="build_with_libjingle=1 build_with_chromium=0 libjingle_java=1"
export GYP_GENERATORS="ninja"
export GYP_DEFINES="$GYP_DEFINES OS=android host_os=linux host_arch=x64 target_arch=ia32" android_gyp
#export GYP_GENERATOR_FLAGS="$GYP_GENERATOR_FLAGS output_dir=out"
#export GYP_CROSSCOMPILE=1


#export JAVA_HOME="/usr/lib/jvm/java-7-oracle"
 

export JAVA_HOME="/usr/lib/jvm/java-6-openjdk-amd64"
sudo ~/git/working/stable/build/./install-build-deps-android.sh
sudo ~/git/working/stable/build/./install-build-deps.sh --no-chromeos-fonts
cp -R ~/git/working/stable ~/git/working/trunk
gclient runhooks
cd trunk
ninja -C out/Debug AppRTCDemo




### Download eclipse and sdk
cd ~/Downloads/adt-bundle-linux-x86_64-20140321/sdk/platform-tools
./adb devices
./adb install -r ~/git/working/trunk/out/Debug/AppRTCDemo-debug.apk

[Ami Fischman]

@SProgrammer: problem is in your setup, not in the codebase (we regularly run AppRTCDemo on devices).

Apparently you're checking out 5-month-old code from an arbitrary frozen revision:

gclient config http://webrtc.googlecode.com/svn/stable/

"/stable" stopped getting updated last year; you should be checking out of /trunk as described in https://sites.google.com/site/webrtc/reference/getting-started

 

@mmrasheed: you shouldn't need --force (anything that makes it seem like you do is probably a problem you should fix instead of using --force to work-around and stumble on problems later).  [gclient sync] (without --nohooks) and [gclient runhooks] should (if successful) run gyp and emit .ninja files into whatever output_dir is set to in $GYP_GENERATOR_FLAGS, or out/ if it is not set to anything.

 

1. /Users/megamind/programming/depot_tools/third_party/boto/pyami/config.py:75: UserWarning: Unable to load AWS_CREDENTIAL_FILE ()

     warnings.warn('Unable to load AWS_CREDENTIAL_FILE (%s)' % full_path)

   Failure: 'NoneType' object is not callable.

Last time this came up a reinstall of depot_tools and xcode (!) fixed it for the reporter:

https://groups.google.com/forum/#!msg/discuss-webrtc/PZZsXDXBpNM/HxLUW2uIMdMJ

  

The whole log is available at http://pastebin.com/HZ6SDiAt

This is no longer there. 

As @SProgrammer said, targeting android from osx isn't a thing most(/any?) webrtc developers do, so it's likely the toolchain won't just work out of the box.

Cheers,

-a

[SProgrammer]

@Ami Fischman: Thank you for the suggestion.

- i did just now pulled from /trunk  and recompiled/ rebuild/ re-executed on the Device itself + on an emulator 

But both has still same result, no luck

- Build success but application does nothing at all, not functional at all, 

black screen and like frozen, please see issue where i also updated the last build output : https://code.google.com/p/webrtc/issues/detail?id=3327

 

________ running '/usr/bin/python trunk/build/cp.py trunk/../chromium_gn/.gn trunk' in '/home/sun/git/working'


 

________ running 'download_from_google_storage --no_resume --platform=win32 --no_auth --bucket chromium-gn -s trunk/tools/gn/bin/win/gn.exe.sha1' in '/home/sun/git/working'


 

________ running 'download_from_google_storage --no_resume --platform=darwin --no_auth --bucket chromium-gn -s trunk/tools/gn/bin/mac/gn.sha1' in '/home/sun/git/working'


 

________ running 'download_from_google_storage --no_resume --platform=linux* --no_auth --bucket chromium-gn -s trunk/tools/gn/bin/linux/gn.sha1' in '/home/sun/git/working'

0> Downloading trunk/tools/gn/bin/linux/gn...


 

________ running 'download_from_google_storage --no_resume --platform=linux* --no_auth --bucket chromium-gn -s trunk/tools/gn/bin/linux/gn32.sha1' in '/home/sun/git/working'

0> Downloading trunk/tools/gn/bin/linux/gn32...


 

________ running 'download_from_google_storage --no_resume --platform=win32 --no_auth --bucket chromium-clang-format -s trunk/third_party/clang_format/bin/win/clang-format.exe.sha1' in '/home/sun/git/working'


 

________ running 'download_from_google_storage --no_resume --platform=darwin --no_auth --bucket chromium-clang-format -s trunk/third_party/clang_format/bin/mac/clang-format.sha1' in '/home/sun/git/working'


 

________ running 'download_from_google_storage --no_resume --platform=linux* --no_auth --bucket chromium-clang-format -s trunk/third_party/clang_format/bin/linux/clang-format.sha1' in '/home/sun/git/working'

0> Downloading trunk/third_party/clang_format/bin/linux/clang-format...


 

________ running '/usr/bin/python trunk/tools/clang/scripts/update.py --if-needed' in '/home/sun/git/working'


 

________ running '/usr/bin/python trunk/webrtc/build/download_vs_toolchain.py update' in '/home/sun/git/working'


 

________ running '/usr/bin/python trunk/third_party/binutils/download.py' in '/home/sun/git/working'

0> Downloading /home/sun/git/working/trunk/third_party/binutils/Linux_x64/binutils.tar.bz2...

Downloading /home/sun/git/working/trunk/third_party/binutils/Linux_x64/binutils.tar.bz2

Extracting /home/sun/git/working/trunk/third_party/binutils/Linux_x64/binutils.tar.bz2


 

________ running 'download_from_google_storage --directory --recursive --num_threads=10 --no_auth --bucket chromium-webrtc-resources trunk/resources' in '/home/sun/git/working'

4> Downloading trunk/resources/verizon4g-uplink.rx...

3> Downloading trunk/resources/verizon3g-uplink.rx...

5> Downloading trunk/resources/short_mixed_stereo_48.pcm...

6> Downloading trunk/resources/near16_stereo.pcm...

2> Downloading trunk/resources/near44_stereo.pcm...

1> Downloading trunk/resources/near8_stereo.pcm...

0> Downloading trunk/resources/foreman_cif_short.yuv...

9> Downloading trunk/resources/near32_stereo.pcm...

7> Downloading trunk/resources/sprint-uplink.rx...

8> Downloading trunk/resources/far8_stereo.pcm...

9> Downloading trunk/resources/verizon3g-downlink.rx...

1> Downloading trunk/resources/e2e_audio_in.pcm...

6> Downloading trunk/resources/synthetic-trace.rx...

3> Downloading trunk/resources/foreman_cif.yuv...

8> Downloading trunk/resources/att-downlink.rx...

5> Downloading trunk/resources/near48_stereo.pcm...

7> Downloading trunk/resources/ref03.aecdump...

2> Downloading trunk/resources/deflicker_before_cif_short.yuv...

4> Downloading trunk/resources/far44_stereo.pcm...

9> Downloading trunk/resources/att-uplink.rx...

1> Downloading trunk/resources/far16_stereo.pcm...

6> Downloading trunk/resources/verizon4g-downlink.rx...

5> Downloading trunk/resources/far48_stereo.pcm...

0> Downloading trunk/resources/speech_and_misc_wb.pcm...

1> Downloading trunk/resources/short_mixed_stereo_48.dat...

4> Downloading trunk/resources/foremanColorEnhanced_cif_short.yuv...

5> Downloading trunk/resources/short_mixed_mono_48.dat...

9> Downloading trunk/resources/short_mixed_mono_48.pcm...

8> Downloading trunk/resources/far32_stereo.pcm...

1> Downloading trunk/resources/tmobile-uplink.rx...

7> Downloading trunk/resources/paris_qcif.yuv...

5> Downloading trunk/resources/audioproc.aecdump...

0> Downloading trunk/resources/sprint-downlink.rx...

9> Downloading trunk/resources/tmobile-downlink.rx...

8> Downloading trunk/resources/video_coding/pltype103.rtp...

1> Downloading trunk/resources/video_coding/ssrcs-2.pcap...

0> Downloading trunk/resources/video_coding/ssrcs-3.pcap...

6> Downloading trunk/resources/video_coding/frame-loopback.pcap...

8> Downloading trunk/resources/video_coding/frame-ethernet-ii.pcap...

9> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR4.bin...

2> Downloading trunk/resources/rtp_rtcp/H263_CIF_IFRAME.bin...

1> Downloading trunk/resources/rtp_rtcp/H263_QCIF_IFRAME.bin...

4> Downloading trunk/resources/rtp_rtcp/H263Foreman_CIF_Pframe.bin...

6> Downloading trunk/resources/rtp_rtcp/H263_CIF_PFRAME.bin...

0> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR0.bin...

8> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR5.bin...

9> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR3.bin...

2> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR2.bin...

1> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR4_2.bin...

4> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR4_1.bin...

6> Downloading trunk/resources/rtp_rtcp/H263Foreman_CIF_Iframe.bin...

0> Downloading trunk/resources/rtp_rtcp/RTCPPacketTMMBR1.bin...

9> Downloading trunk/resources/voice_engine/audio_long16.wav...

8> Downloading trunk/resources/voice_engine/audio_long16.pcm...

2> Downloading trunk/resources/voice_engine/audio_tiny22.wav...

1> Downloading trunk/resources/voice_engine/audio_tiny32.wav...

4> Downloading trunk/resources/voice_engine/audio_long16big_endian.pcm...

5> Downloading trunk/resources/voice_engine/audio_long8mulaw.wav...

7> Downloading trunk/resources/voice_engine/audio_short16.pcm...

6> Downloading trunk/resources/voice_engine/audio_tiny48.wav...

0> Downloading trunk/resources/voice_engine/audio_tiny8.wav...

2> Downloading trunk/resources/voice_engine/audio_tiny11.wav...

3> Downloading trunk/resources/voice_engine/audio_long16noise.pcm...

1> Downloading trunk/resources/voice_engine/audio_tiny44.wav...

9> Downloading trunk/resources/voice_engine/audio_tiny16.wav...

8> Downloading trunk/resources/voice_engine/audio_long8.pcm...

5> Downloading trunk/resources/audio_coding/F01_tlm10.OUT20...

7> Downloading trunk/resources/audio_coding/F02.BIT30...

6> Downloading trunk/resources/audio_coding/F03.OUT20...

0> Downloading trunk/resources/audio_coding/neteq4_universal_ref_win_32.pcm...

2> Downloading trunk/resources/audio_coding/F04.BIT30...

3> Downloading trunk/resources/audio_coding/F02.INP...

1> Downloading trunk/resources/audio_coding/speech_mono_32_48kHz.pcm...

9> Downloading trunk/resources/audio_coding/neteq4_universal_ref.pcm...

8> Downloading trunk/resources/audio_coding/F04.BIT20...

7> Downloading trunk/resources/audio_coding/F01.BIT20...

5> Downloading trunk/resources/audio_coding/neteq4_rtcp_stats.dat...

6> Downloading trunk/resources/audio_coding/neteq_universal.rtp...

2> Downloading trunk/resources/audio_coding/F00_tlm10.OUT20...

0> Downloading trunk/resources/audio_coding/neteq_universal_new.rtp...

4> Downloading trunk/resources/audio_coding/F05.BIT20...

7> Downloading trunk/resources/audio_coding/testfile32kHz.pcm...

3> Downloading trunk/resources/audio_coding/neteq_universal_ref_win_32.pcm...

8> Downloading trunk/resources/audio_coding/F02_tlm10.OUT20...

5> Downloading trunk/resources/audio_coding/F00.BIT20...

2> Downloading trunk/resources/audio_coding/music_stereo_48kHz.pcm...

4> Downloading trunk/resources/audio_coding/F00_tlm10.OUT30...

7> Downloading trunk/resources/audio_coding/F00.OUT20...

5> Downloading trunk/resources/audio_coding/F04.INP...

6> Downloading trunk/resources/audio_coding/F01_tlm10.OUT30...

8> Downloading trunk/resources/audio_coding/neteq_network_stats_win_32.dat...

4> Downloading trunk/resources/audio_coding/F03.OUT30...

3> Downloading trunk/resources/audio_coding/tlm10.chn...

9> Downloading trunk/resources/audio_coding/neteq_network_stats.dat...

0> Downloading trunk/resources/audio_coding/F05.INP...

7> Downloading trunk/resources/audio_coding/F05.BIT30...

6> Downloading trunk/resources/audio_coding/F04.OUT20...

8> Downloading trunk/resources/audio_coding/F00.OUT30...

5> Downloading trunk/resources/audio_coding/F05.OUT30...

1> Downloading trunk/resources/audio_coding/F02.OUT20...

2> Downloading trunk/resources/audio_coding/F01.OUT20...

3> Downloading trunk/resources/audio_coding/F06.INP...

4> Downloading trunk/resources/audio_coding/F00.INP...

9> Downloading trunk/resources/audio_coding/F02.OUT30...

0> Downloading trunk/resources/audio_coding/F01.OUT30...

7> Downloading trunk/resources/audio_coding/clean.chn...

6> Downloading trunk/resources/audio_coding/F05.OUT20...

8> Downloading trunk/resources/audio_coding/F06.BIT20...

5> Downloading trunk/resources/audio_coding/teststereo32kHz.pcm...

1> Downloading trunk/resources/audio_coding/neteq4_network_stats_win_32.dat...

2> Downloading trunk/resources/audio_coding/neteq4_network_stats.dat...

7> Downloading trunk/resources/audio_coding/F00.BIT30...

4> Downloading trunk/resources/audio_coding/F04.OUT30...

0> Downloading trunk/resources/audio_coding/F06.OUT30...

9> Downloading trunk/resources/audio_coding/neteq_rtcp_stats.dat...

3> Downloading trunk/resources/audio_coding/F03.BIT30...

8> Downloading trunk/resources/audio_coding/F03.INP...

6> Downloading trunk/resources/audio_coding/F01.BIT30...

5> Downloading trunk/resources/audio_coding/F06.BIT30...

1> Downloading trunk/resources/audio_coding/F02_tlm10.OUT30...

2> Downloading trunk/resources/audio_coding/neteq_universal_ref.pcm...

7> Downloading trunk/resources/audio_coding/F03.BIT20...

4> Downloading trunk/resources/audio_coding/F01.INP...

3> Downloading trunk/resources/audio_coding/F06.OUT20...

8> Downloading trunk/resources/audio_coding/F02.BIT20...

6> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyChoke_1_TOF.bin...

9> Downloading trunk/resources/audio_coding/speech_mono_16kHz.pcm...

0> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyLoss_0_TOF.bin...

5> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyChoke_0_TOF.bin...

1> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingDelay1_0_TOF.bin...

7> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyDelay_0_AST.bin...

4> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke2_1_TOF.bin...

3> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingLoss1_0_TOF.bin...

8> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke2_0_TOF.bin...

6> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke2_1_AST.bin...

2> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_Multi1_1_AST.bin...

5> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_Multi1_1_TOF.bin...

1> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke1_0_TOF.bin...

9> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyChoke_0_AST.bin...

7> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_UnlimitedSpeed_0_TOF.bin...

4> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke1_1_TOF.bin...

3> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_UnlimitedSpeed_0_AST.bin...

8> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingLoss1_0_AST.bin...

6> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke1_1_AST.bin...

5> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyLoss_0_AST.bin...

2> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke2_0_AST.bin...

1> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyChoke_1_AST.bin...

9> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_SteadyDelay_0_TOF.bin...

0> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingChoke1_0_AST.bin...

7> Downloading trunk/resources/remote_bitrate_estimator/VideoSendersTest_BweTest_IncreasingDelay1_0_AST.bin...

4> Downloading trunk/resources/video_engine/renderStartImage.jpg...

8> Downloading trunk/resources/video_engine/renderTimeoutImage.jpg...

3> Downloading trunk/resources/images/renderStartImage.jpg...

6> Downloading trunk/resources/images/captureDeviceImage.jpg...

2> Downloading trunk/resources/images/renderTimeoutImage.jpg...

5> Downloading trunk/resources/images/webrtc_logo.jpg...

1> Downloading trunk/resources/audio_device/audio_short48.pcm...

9> Downloading trunk/resources/audio_device/audio_short8.pcm...

0> Downloading trunk/resources/audio_device/audio_short44.pcm...

7> Downloading trunk/resources/audio_device/audio_short16.pcm...

Hook 'download_from_google_storage --directory --recursive --num_threads=10 --no_auth --bucket chromium-webrtc-resources trunk/resources' took 69.50 secs


 

________ running '/usr/bin/python trunk/webrtc/build/gyp_webrtc -Dextra_gyp_flag=0' in '/home/sun/git/working'

Updating projects from gyp files...

ninja: Entering directory `out/Debug'

ninja: warning: multiple rules generate icudtl.dat. builds involving this target will not be correct; continuing anyway

[1651/2330] CC obj.host/third_party/yasm/source/patched-yasm/modules/objfmts/bin/yasm.bin-objfmt.o

../../third_party/yasm/source/patched-yasm/modules/objfmts/bin/bin-objfmt.c: In function 'dosexe_objfmt_output':

../../third_party/yasm/source/patched-yasm/modules/objfmts/bin/bin-objfmt.c:1869:18: warning: ignoring return value of 'ftruncate', declared with attribute warn_unused_result [-Wunused-result]

[2330/2330] ACTION AppRTCDemo: build_apprtcdemo_apk_535bc85b93183dc3b2a7625a652bd5e0

[Ami Fischman]

@SProgrammer: sounds like you're not having a "sync failure while running client runhooks" so probably this is the wrong thread for your issue.

-a

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[Shamun Toha Md]

@Ami Fischman: Thank you yes, my issue is updated here: https://code.google.com/p/webrtc/issues/detail?id=3327

[mmrasheed]

@SProgrammer , thanks for pointing out that compiling for android in mac os x is not currently supported. I edited that part to sync and compile for mac only and the problem persisted. I was still getting the same error. I am setting up a linux machine for the android client. 

@fischman , thanks for your response. when I don't force sync, the error occurs during "gclient runhooks". After searching more for solution, I found issue#2811  wheredgd...@gmail.com temporarily solved this problem by commenting out the following part in DEPS file-

{
    # Download test resources, i.e. video and audio files from Google Storage.
    "pattern": "\\.sha1",
    "action": ["download_from_google_storage",
               "--directory",
               "--recursive",
               "--num_threads=10",
               "--no_auth",
               "--bucket", "chromium-webrtc-resources",
               Var("root_dir") + "/resources"],
  },

Now the ninja file and output directory are generated. Although I am yet to run the samples to test if everything is there, I can see all the necessary files in places.

I guess (as also pointed out somewhere in this group) this issue occurs due to network interruption during sync. Since my internet connection is significantly slow and there was network interruption every time I tried to sync, this seems a valid issue. I would like to request the repository maintainers to improve the recovery of sync from any network interruption.

I would look forward to a permanent solution to this issue. 

[Ami Fischman]

I guess (as also pointed out somewhere in this group) this issue occurs due to network interruption during sync. Since my internet connection is significantly slow and there was network interruption every time I tried to sync, this seems a valid issue. I would like to request the repository maintainers to improve the recovery of sync from any network interruption.

I would look forward to a permanent solution to this issue. 

I don't see an easy way to make the various network-using tools involved in checking out / syncing a working directory impervious to intermittent network connectivity.  I think the only permanent solution to this issue is to get a reliable network connection.

Sorry.

-a