在Windows机器上安装bcrypt-nodejs时出现问题

Question

I am having some problems installing bcrypt-nodejs on Windows machine, not bcrypt but bcrypt-nodejs which is a different dependency.

I get the output below in the command line after doing npm install bcrypt-node.js

    C:\web_dev_root_folder\facerecognitionbrain>npm install bcrypt-nodejs
npm WARN ts-pnp@1.0.1 requires a peer of typescript@* but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.7 (node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.7: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

+ bcrypt-nodejs@0.0.3
updated 1 package and audited 36348 packages in 31.525s
found 63 low severity vulnerabilities
  run `npm audit fix` to fix them, or `npm audit` for details

And when I go ahead and try to run my script by doing npm start I get:

> facerecognitionbrain-api@1.0.0 start C:\web_dev_root_folder\facerecognitionbrain-api
> nodemon server.js

[nodemon] 1.18.10
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node server.js`
internal/modules/cjs/loader.js:583
    throw err;
    ^

Error: Cannot find module 'bcrypt-nodejs'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
    at Function.Module._load (internal/modules/cjs/loader.js:507:25)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (C:\web_dev_root_folder\facerecognitionbrain-api\server.js:3:16)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
[nodemon] app crashed - waiting for file changes before starting...

Any solution to this will be greatly appreciated.

Answer 1

Did you run your npm install in the wrong directory?

Looks like you did the npm install in C:\\web_dev_root_folder\\facerecognitionbrain , but you are requiring it in C:\\web_dev_root_folder\\facerecognitionbrain-api\\server.js which is in a different directory.