Property 'errorReason' does not exist on type 'MessageWithMdEnforced'-CodePudding

I have a project with meteor, react and typescript

Below is the part of code where I am getting the error

{message?.errorReason &&
   <div>{message?.errorReason}</div>
}

I am getting error

Property 'errorReason' does not exist on type 'MessageWithMdEnforced'

export type MessageWithMdEnforced = WithRequiredProperty<IMessage, 'md'>;

type WithRequiredProperty<Type, Key extends keyof Type> = Omit<Type, Key> & {
    [Property in Key]-?: Type[Property];
};

Why the error occurs ? Can anyone tell me where to add errorReason ?

CodePudding user response：

You need to define type in IMessage interface. You would find it in your project

interface IMessage extends SomeClass{
   prop?: string,
   ...
   ...
   ...
   errorReason?: any
}