Building using bazel error: Unrecognized option: --useDataBindingAndroidX

[JishnuGoyal]

When I used bazel build //:oppia , it threw this error :
Error parsing command line: Unrecognized option: --useDataBindingAndroidX

[JishnuGoyal]

I finally found a solution to this!

while executing these set of commands,

echo build --override_repository=android_tools="$(cd "$(dirname "$HOME/opensource/oppia-bazel-tools")"; pwd)/$(basename "$HOME/opensource/oppia-bazel-tools")" > ~/.bazelrc and
echo build --android_databinding_use_androidx >> ~/.bazelrc

replace $HOME with the location where your HOME environment variable points. That is, your root location. For ex, for me it was /home/jishnu.
If you are not sure what is your root location,
run this in terminal:
printenv HOME
and replace the output with $HOME in the above commands everywhere

Hope this helps!

[BenHenning]

@JishnuGoyal did $HOME not expand to its value originally? That's rather unexpected if so. Which version of Linux are you running?

This might be something worth updating in https://github.com/oppia/oppia-bazel-tools#readme, but I'm on the fence since we're also waiting for Bazel 5.x (which will replace needing to use our separate tools repo altogether).

[JishnuGoyal]

I'm using Ubuntu 20.04 LTS version, and $HOME didn't expand itself automatically on my system

[BenHenning]

Thanks for the specifics, that's really surprising actually.