Why does the module not want to be declared?

Question

Node.js

1 module is declared fine, but when I try to do the same with koa-connect-flash, I get the error " Circular definition of import alias 'connectFlash' ", what could be the problem?

declare module 'koa-connect-flash' {
  import connectFlash from 'koa-connect-flash';
  export default connectFlash;
}

Answer 1

Cyclic dependency. You declare that your module uses itself. You can't do that. Only third-party modules can be imported into the declaration if they are used by the library.
The simplest option, in your case:

declare module 'koa-connect-flash' {
  const def: any;
  export default def;
}