FXMLLoader报错

[睿智的教练]

仅产生一个FXMLLoader就报错了,不知道该怎么解决,我jdk1.12, javafx类库是通过用户库添加进去的
Exception in thread "main" java.lang.IllegalAccessError: class com.sun.javafx.fxml.FXMLLoaderHelper (in unnamed module @0x6ed3ef1) cannot access class com.sun.javafx.util.Utils (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.util to unnamed module @0x6ed3ef1
at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>(FXMLLoaderHelper.java:38)
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2056)
at com.wise_coach.chap23.study08.Test.main(Test.java:7)