Error while compiling to edgetpu model

[piks2252]

Hello,
I want to run this model in edgetpu, I converted the TensorFlow model to TFLite with posttraining quantization and after this when i try to convert tflite quantized model to edgetpu using edgetpu compiler, I am getting the following error:

Edge TPU Compiler version 16.0.384591198 Started a compilation timeout timer of 180 seconds. ERROR: Attempting to use a delegate that only supports static-sized tensors with a graph that has dynamic-sized tensors. Compilation failed: Model failed in Tflite interpreter. Please ensure model can be loaded/run in Tflite interpreter. Compilation child process completed within timeout period. Compilation failed!

I don't understand this error, please help me to solve this error

Thanks & Regards,
Pratik Patel