Property "value" does not exist on type Readonly

Did you declare an interface for your state?

Take a look at Hello React and TypeScript which shows an example of using interfaces with React Components.

I suspect you're missing something like this:

interface IMyComponentProps {
    someDefaultValue: string
}

interface IMyComponentState {
    someValue: string
}

class App extends React.Component<IMyComponentProps, IMyComponentState> {
  // ...
}

could you please try this as follow.

class App extends React.component<{},any>{ //your code}