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Two options: First, put the

namespace

attribute in your application build script. It’s under the android block The other is to put the

package:name=""

in the

<manfiest />

tag in your application’s androidmanifest.xml. I’d suggest doing the first way as with AGP 8,

package=

in the

<manifest />

tag is not allowed anymore and you will want to have both namespace and testNamespace defined in your build script.