Could not find method run() for arguments on root project

检查build.gradle是否使用了application插件

plugins {
    id 'java'
    id 'application'
}

如果直接用IDEA的运行三角形运行，会报这个错误。

错误: 缺少 JavaFX 运行时组件, 需要使用该组件来运行此应用程序

那么使用Gradle的run命令允许就不会

附（完整的build.gradle和代码）
参考: Getting Started with JavaFX 11

plugins {
    id 'java'
    id 'application'
}

group 'cn.net.pikachu'
version '1.0-SNAPSHOT'

def currentOS = org.gradle.internal.os.OperatingSystem.current()
def platform
if (currentOS.isWindows()) {
    platform = 'win'
} else if (currentOS.isLinux()) {
    platform = 'linux'
} else if (currentOS.isMacOsX()) {
    platform = 'mac'
}
repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.12'

    compile "org.openjfx:javafx-base:11:${platform}"
    compile "org.openjfx:javafx-graphics:11:${platform}"
    compile "org.openjfx:javafx-controls:11:${platform}"
}
compileJava {
    doFirst {
        options.compilerArgs = [
                '--module-path', classpath.asPath,
                '--add-modules', 'javafx.controls'
        ]
    }
}

run {
    doFirst {
        jvmArgs = [
                '--module-path', classpath.asPath,
                '--add-modules', 'javafx.controls'
        ]
    }
}
mainClassName='HelloFX'

java代码

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.stage.Stage;


public class HelloFX extends Application {

    @Override
    public void start(Stage stage) {
        String javaVersion = System.getProperty("java.version");
        String javafxVersion = System.getProperty("javafx.version");
        Label l = new Label("Hello, JavaFX " + javafxVersion + ", running on Java " + javaVersion + ".");
        Scene scene = new Scene(l, 640, 480);
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch();
    }

}