javafx 11 project, module not found- intellij

Question

I'm working on a JavaFX project, I started using Netbeans having no problems then switched to IntelliJ Idea where I'm having troubles. At first, some imports like java.sql and javafx were not working, so I added a module-info.java file to the src folder where I put all the required imports, like this:

module blood {
    requires javafx.fxml;
    requires javafx.controls;
    requires javafx.graphics;
    requires java.sql;
    requires java.desktop;
    requires jdk.jfr;
    opens sample;
}

The module has the same name as the project "blood". Now i have no errors concerning the imports but when i run my project i'm getting this:

"C:\Program Files\Java\jdk-11.0.2\bin\java.exe" --module-path C:\Users\USER\Downloads\javafx-sdk-11.0.2\lib --add-modules=javafx.controls,javafx.graphics,javafx.fxml --add-modules javafx.base,javafx.graphics --add-reads javafx.base=ALL-UNNAMED --add-reads javafx.graphics=ALL-UNNAMED -Djava.library.path=C:\Users\USER\Downloads\javafx-sdk-11.0.2 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.3.4\lib\idea_rt.jar=50526:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.3.4\bin" -Dfile.encoding=UTF-8 -m blood/sample.Main
Error occurred during initialization of boot layer
java.lang.module.FindException: Module blood not found

Process finished with exit code 1

I also added to the VM options this line:

--module-path "C:\Users\USER\Downloads\javafx-sdk-11.0.2\lib" --add-modules=javafx.controls,javafx.graphics,javafx.fxml

What should i do?

Answer 1

--module-path C:\Users\USER\Downloads\javafx-sdk-11.0.2\lib

is not sufficient to load the module blood that you've created for your application. On the other hand, the command-line argument

-m blood/sample.Main

expects blood module with sample.Main class to run the application. That is the reason the error reads

java.lang.module.FindException: Module blood not found

So the solution to it would be adding the output folder where the module blood is getting build.

--module-path C:\Users\USER\Downloads\javafx-sdk-11.0.2\lib;<project-output-diretory>

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The openjfx-docs section "JavaFX and IntelliJ" further has a sub-topic "Modular from IDE" which talks about the "Add VM options" to be clear about this configuration.