Error when after vuex module update to 2.5

[Benoit]

After having updated vuex module to a version > 2.3 there is an error : [vuex] actions should be function or object with "handler" function but "actions.NAMESPACE" in module "session" is "/api/session", in browser.

This error can be avoided by replacing

export const NAMESPACE = "/api/session"

by

let NAMESPACE = "/api/session"

and the same for other store actions.
Why was the NAMESPACE exported? It seems to be used inside the action to get or put data.

Thanks for this boilerplate.

[DimYLiK]

same error for me, just replaced all
export const NAMESPACE = blablabla;
with
let NAMESPACE = blablabla;