(48,10): Class 'Component<ITemplateForm, any, any>' defines instance member function 'componentDidMount', but extended class 'TemplateForm' defines it as instance member property.

[kimown]

(48,10): Class 'Component<ITemplateForm, any, any>' defines instance member function 'componentDidMount', but extended class 'TemplateForm' defines it as instance member property.

I really don't understand the meaning of this error, TypeScript error message is useless mostly, I have to use SO, google and many others.

[kimown]

https://stackoverflow.com/questions/48870716/need-help-solving-a-react-typescript-error

I find solution, please mention it in error message, why let so many people waste their time.

[kitsonk]

TypeScript cannot mind read why the base class is defined the way it is, nor why, you as a developer attempted to extend it in an incorrect way. It can only explain that you did as such, which is what the error says.

What error would be more useful that could be applied generically to TypeScript irrespective of framework being used?

Why did you ignore the template for issues which indicated that there was a lot more information required to address an issue, and that this isn't a support forum? Clearly StackOverflow was the appropriate place for this question, and was already answered.

[DanielRosenwasser]

We might not even want to issue this error anymore: #17113.

[typescript-bot]

Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.