@aXiDz
1.If you have installed @quasar/icon-genie please remove it after you build your app icon and splash screen.
2.Uninstall “core-js” from your project if exist.
3.Remove node_modules and package_lock.json
4. Run npm or yarn install we’ll work fine!

If your submit button inside <q-form> just use type=‘email’ it ok

<q-form
          @submit="onSubmit"
          class="q-gutter-md"
        >
          <div class="q-gutter-y-sm">
            <q-input
              class="full-width"
              outlined
              v-model="data.name"
              label="គោត្តនាម-នាម"
              square
              lazy-rules
              :rules="[ val => !!val || 'សូមបំពេញចន្លោះ']"
            />
            <q-input
              class="full-width"
              outlined
              type="email"
              v-model="data.email"
              label="អុីម៉ែល"
              square
              lazy-rules
              :rules="[ val => !!val || 'សូមបំពេញចន្លោះ']"
            />
            <q-btn type="submit" label="រក្សាទុក" class="full-width" color="primary"/>
          </div>
        </q-form>

@NickBloodworth I fact Vue.JS or Quasar , we use them as UI framework. If you want to communicate with backend you need a backend languages like php ,nodejs … . If you want to use Mongodb Cloud as your database you can use (nodejs express mongoose) to build API as my recommendation. If you want to move from local to Cloud just change the connection string. Hope it help

@aXiDz
1.If you have installed @quasar/icon-genie please remove it after you build your app icon and splash screen.
2.Uninstall “core-js” from your project if exist.
3.Remove node_modules and package_lock.json
4. Run npm or yarn install we’ll work fine!