Composition-api: Vue Composition API v1.0.0-beta.14 breaks package

[aaronhuisinga]

🐛 The bug
The new release of Vue Composition API (v1.0.0-beta.14) breaks this package. The new release removes the markReactive export (https://github.com/vuejs/composition-api/pull/512), which the Nuxt Composition API currently depends on.

When attempting to compile our Nuxt app after updating the Vue Composition API, we get the following error:

 ✖ Nuxt Fatal Error                                                                                                │
   │                                                                                                                     │
   │   SyntaxError: The requested module                                                                                 │
   │   'file:///Users/xxx/Documents/code/xxx/client/node_modules/@vue/composition-api/index.js' does not   │
   │   provide an export named 'markReactive'    

🛠️ To reproduce
Steps to reproduce the behavior:

1. Update Vue Composition package to v1.0.0-beta.14
2. Run yarn dev

[JamieCurnow]

If anyone is looking for a workaround until this is fixed, add a resolution to your package.json for @vue/composition-api:

"resolutions": {
    "@vue/composition-api": "1.0.0-beta.13"
  }

[liaojunhong]

This is because the 1.0.0-beta.14 version of vue-composition-api has been updated and markReactive has been removed