CSS not finding JavaFX rules

Question

I am currently trying to style my JavaFX project with CSS, and each time I try to implement a property, it says "no rule for ___ found!". I have tried -fx-font-family: and -fx-background-color:.

I am using Eclipse 2019-09.

EDIT: Minimal Reproductive Example: application.css in a JavaFX project in Eclipse 2019-09

.label { -fx-font-family: Helvetica; }

Shows the message "no rule for -fx-font-family found!" and underlines the -fx-font-family line in yellow.

Can you add the CSS file(s) to the scene graph without issue? If so, then this is probably just a problem with your IDE. Have you tried installing e(fx)clipse? — Slaw
– Slaw, Commented Dec 14, 2019 at 20:06
do what Slaw suggested and also edit your buildpath to include javafx, to enable jfx-css code-assistance — CaspianTerrazzo
– CaspianTerrazzo, Commented Dec 14, 2019 at 21:47
I have e(fx)clipse installed and working, (except this part obviously). "___" says the rule I attempted to use: Ex. "no rule for -fx-font-family found!" — Kate
– Kate, Commented Dec 14, 2019 at 23:36

jprie · Accepted Answer · 2020-02-17 12:35:15Z

1

I had the same issue. Auto-completion was not working in JavaFx-Projects' css files.

I am using: openJDK12.0.2 and openjfx-sdk-11

The Problem is that e(fx)clipse requires this file in the build path. /.p2/pool/plugins/org.eclipse.fx.ide.css.jfx8_3.5.0.201907240300.jar

Earlier versions automatically added a JavaFX-Library (which included this jar) to your JavaFX-Project.

For using openjfx-sdk-11 you need to define a User Library anyways. I called it JavaFX11. Add all the JavaFX.*.jars there and also the **org.eclipse.fx.ide.css.jfx8_3.5.0.201907240300.jar.

Having a modularised project, you need to rename the file to some name, where the module system can derive a module name from. Ergo: org.eclipse.fx.ide.css.jfx8.jar

Now, auto-completion should work for all JavaFX-Projects where you used the JavaFX11-User-Library again!

Hope that helps. Johannes

edited Feb 17, 2020 at 12:35

answered Feb 17, 2020 at 11:36

jprie

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