How to Fix “Tried to use preview panel provider (JavaFX Webview)...” error on Linux Manjaro

Issue

Error Message: Tried to use preview panel provider (JavaFX Webview), but it is unavailable. Reverting to default.

You might face this error when you are trying to open Markdown(.md) file with Markdown plugin on JetBrains Webstorm or other JetBrains IDEs.

Environment

Manjaro, Webstorm 2020.1

Solution

You can easily fix this by (re)installing webstorm-jre. If you are using yay, you can run;

yay -S webstorm-jre

If you are using other JetBrains IDE with this error, install the matching jre for it.