'How to solve "Encountered unresolved custom op: SimpleMLCreateModelResource." in TensorFlow Model in Android app?

I have trained a TensorFlow Model using the GradientBoostedTreesModel and converted it to a TensorFlow light model using a python script.

Loading the model in my Android app gives me following error message which i cannot resolve:

Caused by: java.lang.IllegalStateException: 
Internal error: Unexpected failure when preparing tensor allocations: 
Encountered unresolved custom op: SimpleMLCreateModelResource.
    See instructions: https://www.tensorflow.org/lite/guide/ops_custom

The mentioned instructions do not provide any valuable information. I have included the TensorFlow lite and tf ops dependencies.

implementation 'org.tensorflow:tensorflow-lite:2.8.0'
implementation 'org.tensorflow:tensorflow-lite-select-tf-ops:2.8.0'
implementation 'org.tensorflow:tensorflow-lite-support:0.3.1'

My Model was trained in a TensorFlow 2.8.0 environment.



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