autoninja -C out\Default chrome throws an error

[Yoav Linder]

hi, i am trying to build my chrome with autoninja -C out\Default chrome, but it throws this error:
C:\projects\chromium\src>autoninja -C out\Default chrome
depot_tools/ninja.py: Could not find Ninja in the third_party of the current project, nor in your PATH.
Please take one of the following actions to install Ninja:
- If your project has DEPS, add a CIPD Ninja dependency to DEPS.
- Otherwise, add Ninja to your PATH *after* depot_tools.

the PATH has the depot tools,it happened since i ran this command:
gclient sync --reset --revision src@refs/tags/96.0.4664.110 --no-history

anyone knows what the problem can be?

[K. Moon]

Newer versions of depot_tools expect Ninja to be provided by the source tree, via gclient. The version of Chromium you've synced does not do this.

In general, it's impossible (and unsupported) to build older versions of Chromium with newer versions of depot_tools.

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[Bruce Dawson]

You could sync depot_tools to an older date, and then prevent it from updating with "set DEPOT_TOOLS_UPDATE=0". Or you could do what the error message suggests and add ninja to your path after depot_tools. Since ninja.exe ships with Visual Studio I sometimes do this by running this command to add the VS tools to the current path:

"c:\Program Files\Microsoft Visual Studio\2022\Professional\VC\Auxiliary\Build\vcvarsall.bat" amd64