Did you run out of disk space ? Something got corrupted, but it's not the upstream repo, that I just tested. Assuming this is local corruption, you should just wipe everything.

  ./cerbero-uninstalled wipe --force --build-tools

I doubt we can help you more on this.

Thank you for your response. I have more than enough disk space. I will try the wipe command and reboot my machine. 

Thank you for your quick response.

If I may, I understand this is a problem on my side, but my knowledge and experience is limited. If there are other suggestions, ideas or logs to review, that I will help solve this problem, It would be very much appreciated to get direction. 

After doing the wipe command and rebooting, I am still getting error at same step.

[(11/15) orc-tool -> fetch ]
Running command 'git remote add origin git://anongit.freedesktop.org/gstreamer/orc'
fatal: remote origin already exists.
Running command 'git remote set-url origin git://anongit.freedesktop.org/gstreamer/orc'
Running command 'git fetch --all'
Fetching origin
Running command 'git reset --hard origin/master'
error: unable to stat just-written file examples/example1.c: No such file or directory
error: unable to stat just-written file examples/example1orc.orc: No such file or directory
error: unable to stat just-written file examples/example2.c: No such file or directory
error: unable to stat just-written file examples/example2orc.orc: No such file or directory
error: unable to stat just-written file examples/example3.c: No such file or directory
error: unable to stat just-written file examples/example3orc.orc: No such file or directory
error: unable to stat just-written file examples/meson.build: No such file or directory
error: unable to stat just-written file examples/mt19937ar.c: No such file or directory
error: unable to stat just-written file examples/mt19937arorc.orc: No such file or directory
error: unable to stat just-written file examples/volscale.c: No such file or directory
error: unable to stat just-written file gtk-doc.make: No such file or directory
warning: unable to unlink 'm4': Directory not empty
fatal: cannot create directory at 'm4': Directory not empty

Recipe 'orc-tool' failed at the build step 'fetch'
Select an action to proceed:
[0] Enter the shell
[1] Rebuild the recipe from scratch
[2] Rebuild starting from the failed step
[3] Skip recipe
[4] Abort
2
[(11/15) orc-tool -> fetch ]
Running command 'git remote add origin git://anongit.freedesktop.org/gstreamer/orc'
fatal: remote origin already exists.
Running command 'git remote set-url origin git://anongit.freedesktop.org/gstreamer/orc'
Running command 'git fetch --all'
Fetching origin
Running command 'git reset --hard origin/master'
error: unable to stat just-written file m4/as-compiler-flag.m4: No such file or directory
error: unable to stat just-written file m4/as-host-defines.m4: No such file or directory
error: unable to stat just-written file m4/as-nano.m4: No such file or directory
error: unable to stat just-written file m4/ax_create_stdint_h.m4: No such file or directory
error: unable to stat just-written file m4/gtk-doc.m4: No such file or directory
error: unable to stat just-written file m4/pkg.m4: No such file or directory
error: unable to stat just-written file meson.build: No such file or directory
error: unable to stat just-written file meson_options.txt: No such file or directory
warning: unable to unlink 'orc-test': Directory not empty
fatal: cannot create directory at 'orc-test': Directory not empty

***** Error running 'bootstrap' command:
Recipe 'orc-tool' failed at the build step 'fetch'


I am running on windows 7 64 bit. 
I used https://gstreamer.freedesktop.org/documentation/installing/building-from-source-using-cerbero.html link as template to set up machine and installed required programs
use 'git clone git://anongit.freedesktop.org/gstreamer/cerbero' command to get cerbero
then used the ReadMe file down loaded with cerbero to ensure I'm following the latest proceedure.

I have never seen git failing this way on windows before, so I have no common knowledge to share I'm sorry. You should maybe test your git installation and get in thouch with the git community ?

The only information I could find has to do with the path being too long.
I reviewed window's path and it was over 255 characters. I made adjustments making it shorter, but this still generated same error.

If you will, please verify I have what I need in my path. This machine is dedicated to compiling gstreamer. It is Windows 7 64 bit. Visual Studio 10 installed. 

C:\Python27;C:\Python27\Scripts;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0;C:\CMake\bin;%TOOL_KIT%;c:\MinGW\bin;c:\MinGW\msys\1.0\bin;C:\Git\cmd;C:\Git\mingw64\bin;C:\Git\usr\bin

The TOOL_KIT = C:\Program Files\Microsoft Windows Performance Toolkit\

I uninstalled git and reinstalled it. I am using version git for windows verion 2.16.0(2). 

Also, .profile has following line => 
export PATH="$PATH:/c/Python27:/c/Git/bin:/c/MinGW/bin/"

There was an apparent installation order or installation error I missed. 
I Started over with a clean Win 7 64bit image and then installed all dependent. And this round bootstrapping finished without error.

Thank you.