How to disable css warning “Unknown property” in Eclipse Mars?
I get many "Unknown property" warnings in my css files.
This might be due to the fact that I have e(fx)clipse 2.0 and the Eclipse Web Developer Tools installed.
If I open the css files with the e(fx)clipse css editor and add /SuppressWarnings/ the warning icon changes its color (see figure below).
- the Problems view still shows the warning and the default css Editor shows the warning, too.
- I do not want to add /SuppressWarnings/ since the css files are automatically generated with WinLess.
How can I disable the "Unknown property" warnings for specific files or at all?
My css files are not located under "src" but under a folder "help". That help folder contains html files for my Eclipse plugin and corresponding css files. =>Those files are not used for JavaFx/e(fx)clipse.
Here is a related article that did not really help me but might give you further information: https://www.eclipse.org/forums/index.php/t/515810/
I filed an e(fx)clipse bug  and uninstalled e(fx)clipse for the time being.
The main reason why I had installed e(fx)clipse at the beginning was to get rid of the access restriction warnings related to jfxrt.jar (also see ). Now I use additonal access rules for the JRE container in my classpath file instead of using e(fx)eclipse:
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"> <attributes> <attribute name="maven.pomderived" value="true"/> </attributes> <accessrules> <accessrule kind="accessible" pattern="javafx/**"/> <accessrule kind="accessible" pattern="com/sun/javafx/**"/> </accessrules> </classpathentry>