npm报错：These dependencies were not found:* canvas in ./node_modules/pdfh5/js/pdf.js* dommatrix/dist/d

npm 报错：

These dependencies were not found:

* canvas in ./node_modules/pdfh5/js/pdf.js
* dommatrix/dist/dommatrix.js in ./node_modules/pdfh5/js/pdf.js
* web–streams-polyfill/dist/ponyfill.js in ./node_modules/pdfh5/js/pdf.worker.js

To install them, you can run: npm install –save canvas dommatrix/dist/dommatrix.js web–streams-polyfill/dist/ponyfill.js

不能直接执行他给的命令，那样会报新的错误

第一步先执行：

 npm install  canvas@2.8.0 --ignore-scripts

只执行npm install canvas会报新的错误

第二步执行：

npm install --save dommatrix

第三步执行：

npm install --save web-streams-polyfill

然后就可以运行成功啦

我的node和npm版本如下:

代码007普通

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