Typescript cannot detect UppyFile error property

[KingMatrix1989]

Initial checklist

• I understand this is a bug report and questions should be posted in the Community Forum
• I searched issues and couldn’t find anything (or linked relevant results below)

Link to runnable example

No response

Steps to reproduce

Suppose we have a variable with type UppyFile

const file: UppyFile<any,any>;

According to UppyFile definition, it should have the error property too, but it doesn't show.

interface UploadedUppyFile<
  TMeta extends IndexedObject<any>,
  TBody extends IndexedObject<any>,
> extends UppyFile<TMeta, TBody> {
  uploadURL: string
}

interface FailedUppyFile<
  TMeta extends IndexedObject<any>,
  TBody extends IndexedObject<any>,
> extends UppyFile<TMeta, TBody> {
  error: string
}


interface State<
  TMeta extends IndexedObject<any> = Record<string, unknown>,
  TBody extends IndexedObject<any> = Record<string, unknown>,
> extends IndexedObject<any> {
  // .... 
  files: {
    [key: string]: UploadedUppyFile<TMeta, TBody> | FailedUppyFile<TMeta, TBody>
  }
  // ...
}

Expected behavior

file.error should have the correct type.

Actual behavior

[Murderlon]

Hi, the source is moving to TS we but haven't published the types yet. It still uses the old manual types in types/. Otherwise we would constantly push breaking type changes. Instead we migrate everything and flip the switch at once, minimising the pain for users.

This should resolve itself. In the meantime you have to use subpar types.