this._stop is not a function

[bhavishhak]

Using compose function with custom dataloader function.
Everythime i start the app this error shows up

[trmjoa]

Hi,

I just had the same error. Since other might have similar issues I'm posting my solution here:

Make sure your dataloader(s) is not returning anything. The only valid return value is a function that when called (on unmount for instance) will stop the current loading logic. A common error is to return a promise or a object from the dataloader. If you do that, then you will have this error.