[Bug] Accessing non-existent property ____ of module exports inside circular dependency

[justekoro]

Type of issue

Bug

---

My environment

• OS version/details: Windows 10 64-bit
• Node version: 14.4.0 (run node --version in your terminal)
• npm version: 6.14.5 (run npm --version in your terminal)
• Version of yo : 3.1.1 (run yo --version in your terminal)

Expected behavior

I'm following this tutorial and it should've given me just "Method one" and "Method two" in the console.

Current behavior

Before logging Method one and Method two, I got some non excepted errors.

Steps to reproduce the behavior

generator/app/index.js:

const Generator = require('yeoman-generator');

module.exports = class extends Generator {
    constructor(args, opts) {
        super(args, opts);

        this.option('babel');
    }

    method1(){
        this.log("Method 1")
    }

    method2(){
        this.log("Method 2")
    }
}

package.json:

{
  "name": "generator-koro",
  "version": "0.1.0",
  "description": "",
  "files": [
    "generators"
  ],
  "keywords": [
    "yeoman-generator"
  ],
  "dependencies": {
    "yeoman-generator": "^1.0.0"
  }
}

then yo koro

Command line output

(node:33064) Warning: Accessing non-existent property 'cat' of module exports inside circular dependency
(Use `node --trace-warnings ...` to show where the warning was created)
(node:33064) Warning: Accessing non-existent property 'cd' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'chmod' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'cp' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'dirs' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'pushd' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'popd' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'echo' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'tempdir' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'pwd' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'exec' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'ls' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'find' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'grep' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'head' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'ln' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'mkdir' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'rm' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'mv' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'sed' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'set' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'sort' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'tail' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'test' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'to' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'toEnd' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'touch' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'uniq' of module exports inside circular dependency
(node:33064) Warning: Accessing non-existent property 'which' of module exports inside circular dependency

[justekoro]

This is similar to this issue

[ddurschlag]

This is caused by an old version of shelljs. See shelljs/shelljs#991 for more. Version 0.8.4 (latest) should fix the issue.