How to update git submodules in Android Studio?

I'm trying to build this project at "" on Android Studio. But when I'm going to compile it I received this error:

I think it's because I've to update git submodules like said on a page project where is specified to Run the following command to get all submodules:

git submodule init && git submodule update

But I'm new with git and I don't know how to do this. I ask you if you can explain me step by step how to do this.


Option 1

$ git clone ./runnerup
$ git submodule init
$ git submodule update


$ git clone --recursive ./runnerup

For more details on submodule:

you can try this git command

git submodule update --recursive --init

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