Error in the Framwork

Today there is an Error in the Framework:
Uncaught (in promise) TypeError: e is undefined

open https://cdn.jsdelivr.net/npm/@ionic/core/dist/ionic/p-805583e6.entry.js:1

onClick https://cdn.jsdelivr.net/npm/@ionic/core/dist/ionic/p-805583e6.entry.js:1

p-805583e6.entry.js:1:1738

open https://cdn.jsdelivr.net/npm/@ionic/core/dist/ionic/p-805583e6.entry.js:1

AsyncFunctionNext self-hosted:674

(Async: async)
onClick https://cdn.jsdelivr.net/npm/@ionic/core/dist/ionic/p-805583e6.entry.js:1

This Error shows, when i clickt on select Showcase in the Ionic Docu.
The same Error are in my App by the Selects…

So Selects at the moment not work :sleepy:

can you provide source code? looks like you forgot pass event to method