bug: doesn't work with yarn 2 PnP

Bug Report

> yarn cap add android                                                                      # ppm -> 1-setup |• — ! + ? RC=1
⠋ Installing android dependencies[error] Unable to find node_modules/@capacitor/cli/package.json. Are you sure @capacitor/cli is installed? This file is currently required for Capacitor to function.
> yarn info -A @capacitor/cli                                                               # ppm -> 1-setup |• — ! + ? RC=1
└─ @capacitor/cli@npm:2.4.2
   ├─ Version: 2.4.2
   │
   ├─ Exported Binaries
   │  ├─ cap
   │  └─ capacitor
   │
   └─ Dependencies
      ├─ chalk@npm:^2.3.0 → npm:2.4.2
      ├─ commander@npm:^4.1.1 → npm:4.1.1
      ├─ compare-versions@npm:^3.1.0 → npm:3.6.0
      ├─ fs-extra@npm:^4.0.3 → npm:4.0.3
      ├─ inquirer@npm:6.3.1 → npm:6.3.1
      ├─ open@npm:^6.1.0 → npm:6.4.0
      ├─ ora@npm:^1.3.0 → npm:1.4.0
      ├─ plist@npm:^3.0.1 → npm:3.0.1
      ├─ semver@npm:^5.4.1 → npm:5.7.1
      ├─ which@npm:^1.3.0 → npm:1.3.1
      └─ xml2js@npm:^0.4.19 → npm:0.4.23
> npx cap doctor                                                                                 # ppm -> 1-setup |• — ! + ?
command not found: cap
> yarn cap doctor                                                                           # ppm -> 1-setup |• — ! + ? RC=1
💊   Capacitor Doctor  💊 

Latest Dependencies:

  @capacitor/cli: 2.4.2
  @capacitor/core: 2.4.2
  @capacitor/android: 2.4.2
  @capacitor/electron: 2.4.2
  @capacitor/ios: 2.4.2

Installed Dependencies:

  @capacitor/cli not installed
  @capacitor/core not installed
  @capacitor/android not installed
  @capacitor/ios not installed
  @capacitor/electron not installed

> yarn cap add @capacitor-community/electron                                                     # ppm -> 1-setup |• — ! + ?
[error] platform @capacitor-community/electron not found

[imhoffd]

@consolenaut We removed the automatic npm install during add in Capacitor 3, but there may be other issues and I haven’t had time to dig in to make sure everything works. I would be hesitant to fix this issue for Capacitor 2 because it depends too much on npm, but if you try Capacitor 3 and find issues, I’d be happy to look at PRs.

[ionitron-bot[bot]]

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