无法导入nodejs中的@tensorflow/tfjs节点

Question

无法将@tensorflow/tfjs-节点导入我的程序。我试图按以下方式导入它：

const tf = require('@tensorflow/tfjs-node')

并收到如下错误：

internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module '/home/nama/working/Canvas-WEB/node_modules/@tensorflow/tfjs-node/lib/napi-v4/tfjs_binding.node'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at Object.<anonymous> (/home/nama/working/Canvas-WEB/node_modules/@tensorflow/tfjs-node/dist/index.js:44:16)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)

但是当我试图导入@tensorflow/tfjs时

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

没有遇到任何错误。

我使用npm安装了@tensorflow/tfjs节点

sudo npm install @tensorflow/tfjs-node

然后得到一个输出(如下)：

@tensorflow/tfjs-node@1.2.7 install /home/nama/working/Canvas-WEB/node_modules/@tensorflow/tfjs-node


node scripts/install.js

CPU-linux-1.2.7.tar.gz
(node:29606) UnhandledPromiseRejectionWarning: Error: EACCES: permission denied, mkdir '/home/nama/working/Canvas-WEB/node_modules/@tens
orflow/tfjs-node/deps'
(node:29606) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async 
function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:29606) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not h
andled will terminate the Node.js process with a non-zero exit code.
npm WARN canvas-web@1.0.0 No repository field.

+ @tensorflow/tfjs-node@1.2.7
updated 1 package and audited 276 packages in 12.428s
found 0 vulnerabilities```

Answer 1

这里有两个问题。

将包安装为根

您希望将依赖项安装为root，但默认情况下npm不会作为root运行。传递以下参数以启用根权限：

sudo npm install @tensorflow/tfjs-node --unsafe-perm=true --allow-root

您还应该重新考虑使用另一个(而不是根)来运行脚本。

Tensorflow.js需要

tensorflow/tfjs-node的要求不会像您那样工作，包@tensorflow/tfjs-node不会导出任何东西，只需要使用本机C++绑定。

下面是应该怎么做(引用教程的话)：

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

Answer 2

我也遇到了同样的问题，并通过在node_modules/@tensorflow/tfjs-node上运行下面的命令来解决它

$ cd node_modules/@tensorflow/tfjs-node/
$ npm install
> @tensorflow/tfjs-node@1.2.6 install /Users/tomoima525/workspace/javascript/tensorflow/baseball/node_modules/@tensorflow/tfjs-node
> node scripts/install.js

CPU-darwin-1.2.7.tar.gz
* Building TensorFlow Node.js bindings

另外，您可能想尝试使用1.2.6的，我能够使用它。

https://github.com/tensorflow/tfjs-node#mac-os-x-requires-xcode