No source available for "tensorflow::TF_TensorToTensor() at 0x7ffff52a9bdc"

I am trying to predict in C/C++ with a model previously trained in Keras with Python and the sentence

“`TF_SessionRun(Session, NULL, Input, InputValues, NumInputs, Output, OutputValues, NumOutputs, NULL, 0,NULL , Status);“`

outputs

No source available for “tensorflow::TF_TensorToTensor() at 0x7ffff52a9bdc”

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Do you have any idea about a possible way to overcome this error?

Thanks