tfjs-core 引用突然停止工作并显示“在注册表中找不到后端".错误 [英] tfjs-core reference suddenly stop working and shows "No backend found in registry." error

问题描述

我正在处理一个涉及 Handpose 和 tensorflow 库的演示项目.一切正常，但现在没有对代码和环境进行任何更改，出现以下错误:

I'm working on a demo project involving Handpose and tensorflow libraries. Everything was working okay, but now, having done no changes to both the code nor the environment, the following error shows up:

Uncaught (in promise) Error: No backend found in registry.
at t.getSortedBackends (tfjs-core:17)
at t.initializeBackendsAndReturnBest (tfjs-core:17)
at t.get [as backend] (tfjs-core:17)
at t.makeTensor (tfjs-core:17)
at Xt (tfjs-core:17)
at Yt (tfjs-core:17)
at Object.eo [as decodeWeights] (tfjs-core:17)
at t.<anonymous> (tfjs-converter:17)
at tfjs-converter:17
at Object.next (tfjs-converter:17)

tfjs-core 引用存在于我的 index.html 文件中:

The tfjs-core reference exists within my index.html file:

<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-core"></script>

并在我的 main.js 文件中使用 handpose:

And use handpose in my main.js file:

const load_model = async () => {
  const model = await handpose.load();
  console.log("Model loaded");
  model_label = document.getElementById("label");
  model_label.innerText = "Model loaded... press start tracking:"

  return model
}

我检查了 tfjs-core 存储库，没有新版本.我也尝试参考较旧的稳定版本，但仍然存在相同的问题.我不知道发生了什么.

I've checked the tfjs-core repository and there have been no new releases. I also tried to reference older stable version instead, but still having the same issue. I can't figure out what happened.

推荐答案

<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-core"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-converter"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-backend-webgl"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow-models/handpose"></script>

Tensorflow 发布了 2.0.0，现在您必须选择 tfjs-backend-webgl、tfjs-backend-cpu 或 tfjs-backend-wasm 来运行您的模型.您正在使用 handpose，为此您应该使用 webgl.

Tensorflow released 2.0.0, and now you must choose either tfjs-backend-webgl, tfjs-backend-cpu, or tfjs-backend-wasm to run your model. You're using handpose and for that you should use webgl.

重复 handpose tfjs 错误 - 未找到后端在注册表中

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