TypeError: Only HTTP(S) protocols are supported

[Loreto Parisi]

When running in Node.js this simple example

global.fetch = require('node-fetch');

require('@tensorflow/tfjs-node');

const tf = require('@tensorflow/tfjs');

let model_path = 'file://./model/nietzsche.json';

tf.loadModel(model_path)

.then(model => {

model.summary();

})

.catch(error => {

console.error(error)

})

my package.json is like

"dependencies": {

"@tensorflow/tfjs": "latest",

"@tensorflow/tfjs-core": "latest",

"@tensorflow/tfjs-node": "0.1.17",

"node-fetch": "^2.2.0"

}

[Shanqing Cai]

Can you swap the order of the two lines, i.e.,

const tf = require('@tensorflow/tfjs');

require('@tensorflow/tfjs-node');

Also, remove the @tensorflow/tfjs and @tensorflow/tfjs-core dependencies from the package.json. Starting from tfjs-node 0.1.17,

those dependencies are included by default. Manually specifying those dependencies will lead to version mismatches and subtle

issues like this.

[Loreto Parisi]

Hi Shanqing,

so I did

"dependencies": {

"@tensorflow/tfjs-node": "0.1.17",

"node-fetch": "^2.2.0"

}

removed package-lock and npm install again. I cannot see within node_modules/@tensorflow/ any other package than tfj-node. While within node_modules/@tensorflow/tfj-node/node_modules/@tensorflow there is everything. This causes a 

Error: Cannot find module '@tensorflow/tfjs'

error.

[Shanqing Cai]

That's weird. Can you remove the entire node_modules folder and try again?

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Shanqing Cai

Software Engineer

Google

ca...@google.com

[Loreto Parisi]

You were right, that was the issue, some node cache issues!, thanks now it loads the model

ip-192-168-22-127:lstm-text-generator loretoparisi$ node index.js 

2018-09-28 18:28:45.819026: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: SSE4.2 AVX AVX2 FMA

(node:23580) Warning: N-API is an experimental feature and could change at any time.

Orthogonal initializer is being called on a matrix with more than 2000 (65536) elements: Slowness may result.

_________________________________________________________________

Layer (type)                 Output shape              Param #   

=================================================================

lstm_LSTM1 (LSTM)            [null,128]                109056    

_________________________________________________________________

dense_Dense1 (Dense)         [null,84]                 10836     

=================================================================

Total params: 119892

Trainable params: 119892

Non-trainable params: 0

_________________________________________________________________

ip-192-168-22-127:lstm-text-generator loretoparisi$ 

Test here: I have put the example here https://github.com/loretoparisi/tensorflow-node-examples/blob/master/lstm-text-generator/index.js