Xamarin.Android error APT0001

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Example messages

error APT0001: unknown option -- --no-crunch . This is the result of using `aapt` command line arguments with `aapt2`. The arguments are not compatible.

Issue

The new Android aapt2 resource tool has different commandline arguments to the older aapt tool. These are generally incompatible with each other.

Solution

If you are receiving this error, check that the values provided in

<AndroidAapt2LinkExtraArgs/>
<AndroidAapt2CompileExtraArgs>

are valid for aapt2. You can use aapt2 compile and aapt2 link to view the list of valid arguments.