App add custom tensorflow-ite model run error

General Discussion
#1

Failed to invoke the interpreter with error: Invalid tensor index 1, max index is 0.
transform model details

def relu6(x):
    return K.relu(x, max_value=6)

with CustomObjectScope({'relu6': relu6}):

    keras_model = "../checkpoints/conv_1d_time_stacked_model/ep-022-vl-0.2538.hdf5"

    # converter = tf.lite.TFLiteConverter.from_keras_model_file(keras_model, input_arrays, output_arrays)
    converter = tf.lite.TFLiteConverter.from_keras_model_file(keras_model)
    tflite_model = converter.convert()
    open("conv_actions_frozen.tflite", "wb").write(tflite_model)
#3

@jkyaoyajie,

Welcome to the Tensorflow Forum!

Could you please provide the complete stack trace and toy model to reproduce the issue?

Thank you!

#5

for example : examples/README.md at master · tensorflow/examples · GitHub , i used this ml to train, when i move conv_actions_frozen.tflite to the example/speechcommand /ios, the error will reproduce . it looks like the inputs outputs params not set. (converter = tf.lite.TFLiteConverter.from_keras_model_file(keras_model))

#6

I used speechCommand ml for training, replacing the trained model with the tflite file of the demo project, and attempting to run the demo, the error was displayed

#8

@jkyaoyajie,

Are you facing trouble while converting into the tflite model or using the example with custom model?

Thank you!

#10

Yes, according to the principle, the ml training should be directly usable in iOS demo projects, but there will be the above error messages. I don’t know how to handle this problem.
Operating steps:

  1. cd examples/tree/master/lite/examples/speech_commands/ml
  2. python download.py
  3. python train.py [-h] [-sample_rate SAMPLE_RATE]
    [-batch_size BATCH_SIZE]
    [-output_representation OUTPUT_REPRESENTATION]
    -data_dirs DATA_DIRS [DATA_DIRS …]
  4. python convert_keras_lite.py
  5. Replace conv_ actions_ Frozen.tflite file in iOS project
  6. run it .
#12

Can you help me solve this problem? I’m a novice, thank you very much

#14

@jkyaoyajie,

To debug your issue further could you please provide iOS configurations?

#16

iOS configurations ? I used demo without changing the configuration, only replacing the tflite model file
。 examples/lite/examples/speech_commands/ios at master · tensorflow/examples · GitHub