npm package for vuex module give error after dispatching - vue.js

Question

I’ve just made an npm package as a module for my vuex. after a long try finally, I could install it and mix it with my vuex. using this link
I console log my store and the action section contain my npm package luckily. but when I want to dispatch it gives me an error :(
use it in my app like :
this.$store.dispatch('orderiomApiPackageAuth/auth')
send me error:
[vuex] unknown action type: orderiomApiPackageAuth/auth
in my module.js:
import axios from "axios";
const state ={
restaurantInfo: {},
imprint: null
};
const mutations = {
setRestaurantInfo(state, restaurantInfo) {
state.restaurantInfo = restaurantInfo
},
setImprint(state, imprint) {
state.imprint = imprint
}
};
const actions = { //some action here }
export default {
namespaced: true,
state,
mutations,
actions
};
in my index.js for package:
import myModule from '/.module.js'
function install(Vue, options ={}) {
if (!options.store) console.log('Please provide a store!!')
options.store.registerModule('desiredName', myModule )
}
export default {
install
}
and use it in my main.js in the project:
import myPackage from 'myPackage'
import store from './store'
Vue.use(myPackage, { store })
I console.log(this.$store) and I realize that the action section contains my modules. but I have a problem with dispatch them.
I took a snapshot from my console share it here :
enter image description here
any help? :(