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nminaya / grammar-nazi-bot

Bot that corrects spelling mistakes.
MIT License
31 stars 8 forks source link

Application Exception: Object reference not set to an instance of an object. #54

Closed nminaya closed 3 years ago

nminaya commented 3 years ago

This is an issue created automatically by GrammarNazi when an exception was captured.

Date (UTC): 01/11/2021 16:16:11

Exception:

System.NullReferenceException: Object reference not set to an instance of an object. at GrammarNazi.Core.Services.TelegramCommandHandlerService.HandleCommand(Message message) in /src/GrammarNazi.Core/Services/TelegramCommandHandlerService.cs:line 100 at GrammarNazi.App.HostedServices.TelegramBotHostedService.OnMessageReceived(Object sender, MessageEventArgs messageEvent) in /src/GrammarNazi.App/HostedServices/TelegramBotHostedService.cs:line 92 at GrammarNazi.App.HostedServices.TelegramBotHostedService.b__8_0(Object obj, MessageEventArgs eventArgs) in /src/GrammarNazi.App/HostedServices/TelegramBotHostedService.cs:line 72

nminaya commented 3 years ago

This issue could be related to this chatConfig variable beeing null https://github.com/nminaya/grammar-nazi-bot/blob/6d440e9c47480caea6dbd921d02e2040a06a3d14/GrammarNazi.Core/Services/TelegramCommandHandlerService.cs#L98

Not sure how that could happen. If this happen again, we will need to handle this null scenario, while trying to figure out how could return null at that point.