[v.5] TypeError: Cannot read property 'singleton' of undefined

[LeadcodeDev]

Hello ! 👋

I would like to use the Adonis email module. So I installed as I am :

yarn add @adonisjs/view
node ace invoke @adonisjs/view

yarn add @adonisjs/mail@alpha
node ace invoke @adonisjs/mail

But I have this mistake:

fatal       TypeError: Cannot read property 'singleton' of undefined
    at ViewProvider.register (E:\WindowsData\Bureau\stickers-application\server\node_modules\@adonisjs\view\build\providers\ViewProvider.js:75:28)
    at E:\WindowsData\Bureau\stickers-application\server\node_modules\@adonisjs\fold\build\src\Registrar\index.js:88:26
    at Array.forEach (<anonymous>)
    at Registrar.register (E:\WindowsData\Bureau\stickers-application\server\node_modules\@adonisjs\fold\build\src\Registrar\index.js:86:24)
    at Bootstrapper.registerProviders (E:\WindowsData\Bureau\stickers-application\server\node_modules\@adonisjs\core\build\src\Ignitor\Bootstrapper\index.js:106:74)
    at GenerateManifest.handle (E:\WindowsData\Bureau\stickers-application\server\node_modules\@adonisjs\core\build\src\Ignitor\Ace\GenerateManifest.js:76:27)
    at Ace.handle (E:\WindowsData\Bureau\stickers-application\server\node_modules\@adonisjs\core\build\src\Ignitor\Ace\index.js:123:17)

So I followed this solution but it doesn't work, I have exactly the same mistake...

Here is some information from my first try :

Package.json

"devDependencies": {
    "@adonisjs/assembler": "^2.1.3",
    "adonis-preset-ts": "^1.0.4",
    "pino-pretty": "^4.0.0",
    "typescript": "^4.0.5",
    "youch": "^2.0.10",
    "youch-terminal": "^1.0.0"
},
"dependencies": {
    "@adonisjs/ace": "^6.9.3",
    "@adonisjs/auth": "^4.2.4",
    "@adonisjs/core": "5.0.0-preview-rc-1.12",
    "@adonisjs/fold": "^6.3.5",
    "@adonisjs/lucid": "^8.2.2",
    "@adonisjs/mail": "^4.2.2",
    "@adonisjs/session": "^3.0.8",
    "@adonisjs/view": "^3.0.8",
    "mysql": "^2.18.1",
    "phc-argon2": "^1.0.10",
    "proxy-addr": "^2.0.6",
    "randomstring": "^1.1.5",
    "reflect-metadata": "^0.1.13",
    "source-map-support": "^0.5.19"
}

Help me 🛠

[thetutlage]

Seems like you are using the older version of the framework core and pulling in the latest version of the mail package. Just follow these steps to upgrade all the dependencies and make slight modifications to your app. Or follow this screencast https://www.youtube.com/watch?v=6MBNw6JOaYQ

[LeadcodeDev]

Thank you very much Harminder, I will try the migration now, I'll tell you again once I'm done migrating ! 👍

[LeadcodeDev]

Further to my previous message, I come back to you to tell you that everything is working perfectly !
Thank you again for your reactivity! 🚀