PoolingLayerBuilder (MEAN)_57' is not set

[Varfalamei]

Hello, I have a problem with saving efficientnetv2 in a tflite model in order to then run it in coreml. When I assemble the project I get an error

Error compiling model compiler error: Error reading protobuf spec. validator error: Padding type for the pooling layer 'PoolingLayerBuilder (MEAN)_57' is not set.

Do you know what the problem might be?