Version

3.2.2

Reproduction link

https://new-issue.vuejs.org/?repo=vuejs/vue-next

Steps to reproduce

111

What is expected?

Uncaught (in promise) TypeError: Cannot read property 'emitsOptions' of null at shouldUpdateComponent (runtime-core.esm-bundler.js:961) at updateComponent (runtime-core.esm-bundler.js:4451) at processComponent (runtime-core.esm-bundler.js:4405) at patch (runtime-core.esm-bundler.js:3995) at patchBlockChildren (runtime-core.esm-bundler.js:4310) at processFragment (runtime-core.esm-bundler.js:4371) at patch (runtime-core.esm-bundler.js:3988) at ReactiveEffect.componentUpdateFn [as fn] (runtime-core.esm-bundler.js:4608) at ReactiveEffect.run (reactivity.esm-bundler.js:160) at callWithErrorHandling

What is actually happening?

Uncaught (in promise) TypeError: Cannot read property 'emitsOptions' of null at shouldUpdateComponent (runtime-core.esm-bundler.js:961) at updateComponent (runtime-core.esm-bundler.js:4451) at processComponent (runtime-core.esm-bundler.js:4405) at patch (runtime-core.esm-bundler.js:3995) at patchBlockChildren (runtime-core.esm-bundler.js:4310) at processFragment (runtime-core.esm-bundler.js:4371) at patch (runtime-core.esm-bundler.js:3988) at ReactiveEffect.componentUpdateFn [as fn] (runtime-core.esm-bundler.js:4608) at ReactiveEffect.run (reactivity.esm-bundler.js:160) at callWithErrorHandling

please provide a working repro.

@CHJ1993 Were you able to solve this?