use webgl gpu mode error

[mccoysc]

var crossValidate = new brain.CrossValidate(function () { var options = { activation: 'relu', // activation function learningRate: 0.01, // global learning rate, useful when training using streams }; return new brain.NeuralNetworkGPU(options); })

this would cause an error 'Uncaught ReferenceError: gpu_js is not defined'。

[perdigao1]

This looks like a torch issue rather than gpu.js