Failed to load a tensorflow none-frozen model to model optimizer

[Xiaojun_H_Intel]

The trained model is in the form of meta graph. So I loaded it to model optimizer:

$mo_tf.py --input_meta_graph <INPUT_META_GRAPH>.meta

After executing the above commands, I got the error as follows:

Model Optimizer version:     1.5.12.49d067a0
Converted 259 variables to const ops.
[ ERROR ]  Exception occurred during running replacer "None" (<class 'extensions.front.tf.assign_elimination.AssignAddElimination'>): Data flow edge coming out of AssignAdd node Adam

Is there anyone encountering the similar issue?

[Qi__Zhongqi]

I have the same problem,It seems that only frozen model can be converted to model optimizer directly.So I only succeeded in converting the frozen model of tensorflow(eg.pb file) using "python mo_tf.py --input_model <pb file name>.pb --input_shape <shape>"