WebStorm/PhpStorm warning for react attributes in jsx like className

Question

I can not remove following warning in react code. "Attribute className is not allowed here".

• Warning in PhpStorm

• Unknown HTML tag attribute can not be set to camelcase only lower case is saved, and turning the check off is not helping.

• Settings in Languages & Frameworks > JavaScript > Libraries

Can you help me I have warnings for every attribute in jsx. Editor is set jsx harmony.

Answer 1

My problem with warnings in jsx was solved by instaling React-Template plugin.

Answer 2

You should add Reactjs library.

Using Reactjs in JavaScript and TypeScript

In my case, I've just added Reactjs support for TypeScript:

Answer 3

I'm a little late on the scene but performing Invalidate Caches/Restart... solved the issue (after switching to JSX Harmony).