A problem occurred configuring project ':flutter_jailbreak_detection'.

[tajjacob]

After migrate to latest Android as suggested in Flutter Migrate

I got this error:

[   +2 ms] FAILURE: Build failed with an exception.
[   +1 ms] * What went wrong:
[        ] A problem occurred configuring project ':flutter_jailbreak_detection'.
[        ] > Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.
[        ]    > Namespace not specified. Specify a namespace in the module's build file. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.
[        ]      If you've specified the package attribute in the source AndroidManifest.xml, you can use the AGP Upgrade Assistant to migrate to the namespace value in the build file. Refer to https://d.android.com/r/tools/upgrade-assistant/agp-upgrade-assistant for general information about using the AGP Upgrade Assistant.

I have to disable this plugin in order to run Flutter android

[muhammednazil]

The same problem occurred to me. Is there any solution for this?

[rithin-prakash]

Someone raised a pull request for this already.#70.

But you could add

namespace "appmire.be.flutterjailbreakdetection"

in ~user/.pub-cache/hosted/pub.dev/flutter_jailbreak_detection-1.10.0/android/build.gradle in the android section.

Note ~user will be different for different os

[mugurelvasile]

Thank you @rithin-prakash , this helped.
I also had to add
kotlinOptions { jvmTarget = JavaVersion.VERSION_1_8 }