vue.reactive is not a function (Nuxtjs, Typescript)

[tahadostifam]

I wanna use this package for making a store in my Typescript based Nuxt project.
But i get a error! its just say vue.reactive is not a function.

Info

nuxt: "2.15.8"
vue: "2.6.14"

store.ts

import { Module, VuexModule } from 'vuex-module-decorators'

@Module
export default class MyModule extends VuexModule {
  someField: string = 'somedata'
}

Error

Can anyone help me please?