This error is indeed related to versioning, specifically the Discord API gateway version. Discord periodically updates their API, and older versions of Discord.Net may not support the latest gateway version.\n\nTo resolve this, you should update your Discord.Net package to the latest stable version. You can do this via the NuGet Package Manager in Visual Studio or by modifying your project file.\n\nBefore updating, check your current version and the latest available version. Sometimes, breaking changes between versions might require adjustments to your code.\n\nIf updating doesn’t solve the issue, ensure your bot’s token is still valid and that you haven’t exceeded Discord’s rate limits. Also, double-check your bot’s permissions on the Discord developer portal.\n\nRemember to thoroughly test your bot after updating to catch any potential compatibility issues.
I’ve encountered this problem before and it certainly appears to be a version mismatch. Discord’s API changes frequently, and older versions of Discord.Net might not support the latest updates.
Updating the package via NuGet to the latest stable version helped resolve the issue in my case. In some situations, even considering a pre-release version can fix recent API changes, but be prepared to adjust your event handlers and command implementations.
Also, verify that your bot’s intents are properly configured in the Discord Developer Portal to meet current requirements.