The properties of JavaFX in the CSS file are not recognized by Eclipse, showing an error message as "unknown property"

After installing Eclipse and downloading the OpenJFX SDK, I encountered an issue where Eclipse marked all -fx- properties in the .css file as warnings with the message "unknown property". Surprisingly, my JavaFX projects still compiled and ran smoothly, as I followed the instructions provided on the official JavaFX website. However, I noticed that CSS auto-completion was not functioning properly, lacking properties. Furthermore, even after adding the JavaFX SDK Library to the Build Path, it did not show up in the Project Explorer, possibly contributing to the problem. I have also installed e(fx)clipse for additional support.

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javacsseclipsejavafxefxclipse

Answer №1

Resolution: First step is to remove the e(fx)clipse plugin; then attempt to reinstall it from the following sources:

After uninstallation, you may observe that the version is automatically downgraded due to unmet dependencies (e.g., from 3.6.0 to 3.5.7). In such cases, proceed to install m2e support from the same repository: https://i.sstatic.net/3jVNp.png

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