How do I change Vue JS 2 router mode from hash to history?

I'm new to VueJS and created a project with hash routing. Is there a way to change it to history mode (v2.x)?

I tried the following:

const router = new VueRouter({
  mode: 'history',
  routes: [...]
})

and

const router = createRouter({
  history: createWebHistory(),
  routes
})

But they won't work. The fisrt one just doesn't do anything, and the second one just triggers some warnings on the CLI.

WARNING  Compiled with 2 warnings                                                                               9:14:51
 warning  in ./src/router/index.js

export 'createRouter' (imported as 'createRouter') was not found in 'vue-router' (possible exports: NavigationFailureType, RouterLink, RouterView, START_LOCATION, default, isNavigationFailure, version)

 warning  in ./src/router/index.js

export 'createWebHistory' (imported as 'createWebHistory') was not found in 'vue-router' (possible exports: NavigationFailureType, RouterLink, RouterView, START_LOCATION, default, isNavigationFailure, version)