Having typescript with class and "normal" components mixed causes errors

[schnetzi]

• I have searched through existing issues
• I have read through docs
• I have read FAQ

Info

• Platform: macOS 10.14.6
• Vetur version: 0.21.1
• VS Code version: 1.37.0

Problem

I cannot call the methods from the data object.

Reproducible Case

I made an example project with my problems:
https://github.com/schnetzi/vetur-problem

What did I try so far

• I downgraded to v0.18.1

Additional Question

• How do I give my scenarios in this case a type? I tried with type Array but then I get a lot more errors.

[ktsn]

This is Vue's typing issue. You cannot access methods in data hook.
See: vuejs/vue#8721