TypeError: layer.layer is undefined

[hmhwe]

I want to run a keras model on a browser using keras.js , but keras.js predict is not working. while loading i got the following error

TypeError: layer.layer is undefined here is the js code:

  const model = new KerasJS.Model(
        {
        filepath: 'example.bin',
        gpu : true,
        filesystem : true

        })

          model.ready().then(() => model.predict(
          {
            input: new Float32Array(samples),
          })) .then(({output}) => 
          {
            alert(output['output']);
          })
          .catch((error) => 
          {
            alert(error);
         });