Question

当我尝试运行摩卡测试时，我会得到

$ npm t

> digitalAlarmClock@1.0.0 test /home/durrantm/Dropnot/code/js/mochaChai/digitalAlarmClock
>  mocha *.test.js

internal/modules/cjs/loader.js:979
  throw err;
  ^

Error: Cannot find module 'commander'
Require stack:
- /usr/lib/nodejs/mocha/bin/_mocha
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:976:15)
    at Function.Module._load (internal/modules/cjs/loader.js:859:27)
    at Module.require (internal/modules/cjs/loader.js:1036:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.<anonymous> (/usr/lib/nodejs/mocha/bin/_mocha:10:17)
    at Module._compile (internal/modules/cjs/loader.js:1147:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
    at Module.load (internal/modules/cjs/loader.js:996:32)
    at Function.Module._load (internal/modules/cjs/loader.js:896:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ '/usr/lib/nodejs/mocha/bin/_mocha' ]
}
npm ERR! Test failed.  See above for more details.

如何解决？

Answer 1

这是我解决问题的方法：

运行 npm list 以查看是否缺少任何依赖项，例如，我看到：

[root@d21b188bb7e1 configurable-http-proxy]# npm list
configurable-http-proxy@4.3.2 /srv/configurable-http-proxy
├── UNMET DEPENDENCY commander@~7.2.0
...

手动安装

npm install --save commander@~7.2.0

Answer 2

发生这种情况可能有多种原因。

在这种情况下，这是因为未安装Mocha。

修复

npm install --save-dev mocha

找不到模块“指挥官”

2 个答案: