'Error occurred during initialization of boot layer java.lang.module. FindException: Module javafx.controls not found

I am trying to build the sample javaFX application in the Intellij 2018.3 IDE. I have installed the oracle JDK11, and downloaded openjfk11. I created a library linked to the javafx sdk and added the line --module-path=${PATH_TO_FX} --add-modules=javafx.controls,javafx.fxml to the VM options line. PATH_TO_FX is defined as an environment variable pointing to my javaFX folder.

I have searched through a number of postings on this site, including This solution to my exact error message. The odd thing I cannot figure out is, This solution works for me if there is no build directory. But if I have already built the project once, it then refuses to run and gives me the stated error. If I delete the build directory and try again, then the program runs correctly again.

javaintellij-ideajavafx


Solution 1:[1]

Well It looks like I just goofed up something with the output directory because this morning I tried resetting the build path to the default and it just started working.

Solution 2:[2]

Try adding path to JavaFX SDK lib folder instead of just the JavaFX SDK. It worked for me.

ex:

--module-path C:\javaFX\javafx-sdk-11.0.2\lib --add-modules javafx.controls,javafx.fxml

*Replace the "C:\javaFX\javafx-sdk-11.0.2\lib" part with the path to your javaFX SDK "lib" folder.

Solution 3:[3]

You should not use VM Path if you define exports and opens in module-info.java. Because VM Path is essential if do not explicitly define module. Then IntelliJ internally creates a module for us.

Solution 4:[4]

Confirm if you didnt add the javafx sdk to the class path instead of the modulepath

Sources

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Source: Stack Overflow

Solution Source
Solution 1 SassyViking
Solution 2 dovh.me
Solution 3 Raghvendra Mishra
Solution 4 Tony-17

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