TypeError: Class extends value undefined is not a constructor or null

[gaunt fiber]

Hey, newbie here in both TypeScript and Sapphire, and I'm trying to build a command but I'm getting the error specified in the title, my code for the constructor is the following:

public constructor(context: CommandContext, options: Command.Options) {
                super(context, {
                        description: 'Play a song',
                        preconditions: [ new VoiceChannelOnly() ],
                        options: [
                                {
                                        name: 'play',
                                        description: 'Play a song from YouTube',
                                        type: 'STRING',
                                        required: true
                                }
                        ]
                });
        }

I know it isn't the best but I'm not sure what's wrong with this, any help?

[hot crow]

@gaunt fiber to help others find answers, you can mark your question as solved via Right Click Solution Message->Apps->✅ Mark Solution

[sinful fox]

Write a proper tsconfig. By default with no target set it compiles to ES3 which doesn't support classes.

extend @sapphire/ts-config and/or read up on tsconfig options.

[gaunt fiber]

Will setting the target in the compiler options to ES2021 fix it?

[sinful fox]

yes

but again, you should read up on what everything in tsconfig does. You shouldnt set values you have no idea for what they do.

https://www.typescriptlang.org/tsconfig

[gaunt fiber]

Alright, thank you

Are there any example and opensource bots made with Sapphire?

[timid frost]

Discord bots that use @sapphire/framework v4
_ _

• Official Bot Examples ᴱ ᴰ ᴶˢ
• Dragonite ᴱ ᴰ
  _ _
  Discord bots that use @sapphire/framework v3
  _ _
• Archangel ᴱ ᴰ
• Arima ᴱ
• Nino ᴱ ᴰ
• Operator ᴱ ᴬ ᴰ
• Radon ᴱ ᴬ
• Sapphire Application Commands Examples ᴱ
• Spectera ᴬ
  _ _
  Discord bots that use @sapphire/framework v2
  _ _
• Materia ᴱ
• RTByte ᴱ ᴬ
• Skyra ᴬ ᴰ
• YliasDiscordBot ᴬ
  _ _
  ᴱ: Uses ESM (if not specified then uses CJS)
  ᴬ: Advanced bot (if not specified it is a simple bot, or not graded)
  ᴰ: Uses Docker in production
  ᴶˢ: Written in JavaScript. If not specified then the bot is written in TypeScript.

[nova ivy]

@gaunt fiber

[hot crow]

Thank you for marking this question as solved!

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