node.js 返回 process.dlopen(module, path._makeLong(filename));
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/35568243/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
return process.dlopen(module, path._makeLong(filename));
提问by Saurav kumar
I am getting this error when running an example from OpenCV Node
从 OpenCV 节点运行示例时出现此错误
return process.dlopen(module, path._makeLong(filename));
^
Error: /home/sunny/face/build/opencv/v5.0.0/Release/node-v46-linux-x64/opencv.node: undefined symbol: _ZNK2cv9Algorithm5writeERNS_11FileStorageE
at Error (native)
at Object.Module._extensions..node (module.js:460:18)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:313:12)
at Module.require (module.js:366:17)
at require (module.js:385:17)
at Object. (/home/sunny/face/lib/bindings.js:4:15)
at Module._compile (module.js:435:26)
at Object.Module._extensions..js (module.js:442:10)
at Module.load (module.js:356:32)
采纳答案by Amol Barshile
Use this command, it works fine:
使用这个命令，它工作正常：
npm rebuild bcrypt --build-from-source
回答by ojrask
Try refreshing your installed modules by
尝试通过以下方式刷新已安装的模块
$ rm -rf node_modules/
$ npm update
I got errors relating to process.dlopenwhen using Gulp and node-sass. Clearing the installed modules fixed the issue for me.
我process.dlopen在使用 Gulp 和 node-sass 时遇到了错误。清除已安装的模块为我解决了这个问题。
EDIT: Not certain how OpenCV works (or what it actually is), but I presume it handles NodeJS modules similarly to regular NodeJS applications, where you can refresh the module collection.
编辑：不确定 OpenCV 是如何工作的（或它实际上是什么），但我认为它处理 NodeJS 模块的方式类似于常规 NodeJS 应用程序，您可以在其中刷新模块集合。
回答by mscdex
You should check your OpenCV installation, it's probably either missing/can't be found or its not a version supported by the OpenCV node binding. Assuming you're using the opencvmodule on npm, its readme says that OpenCV versions from v2.3.1 until v3.0.0 are (fully) supported.
您应该检查您的 OpenCV 安装，它可能丢失/无法找到，或者它不是 OpenCV 节点绑定支持的版本。假设你opencv在 npm 上使用这个模块，它的自述文件说从 v2.3.1 到 v3.0.0 的 OpenCV 版本是（完全）支持的。
回答by Black Mamba
I ran these commands but to no success
我运行了这些命令但没有成功
$ rm -rf node_modules/
$ npm update
The only thing that helped me was
唯一帮助我的是
yarn add node-sass
Finally my node modules were installed successfully.
最后我的节点模块安装成功。
回答by vanduc1102
My case, I have the node_moduleson my .dockerignore
我的情况，我有node_modules我的.dockerignore
node_modules
upload
export
converage
.git
.tmp
.vscode
.github
.env
But I still have to make docker-composebe able to ignore the node_modulesfolder.
但我仍然必须docker-compose能够忽略该node_modules文件夹。
services:
api:
build: .
command: npm run dev
volumes:
- '.:/usr/src/app'
- /usr/src/app/node_modules/
ports:
- "3000:3000"
I think docker-composewill skip copy node_moduleswhich is built for MacOS into Linux container.
我认为docker-compose将跳过node_modules为 MacOS 构建的副本到 Linux 容器中。
