我安装了Java JDK 11,并且正在使用Maven JavaFX。但是,当我尝试运行代码时,出现构建错误,即“类文件的版本54错误,应为52”
POM.xml
<dependencies>
<!-- https://mvnrepository.com/artifact/org.openjfx/javafx-controls -->
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>11.0.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.openjfx/javafx-fxml -->
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>11.0.2</version>
</dependency>
<dependency>
<groupId>com.ibm.watson.developer_cloud</groupId>
<artifactId>java-sdk</artifactId>
<version>6.14.0</version>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
答案 0 :(得分:2)
确保使用Java 11进行编译,并且语言级别设置为10或更高。检查this answer以获得有关如何在IntelliJ IDEA for Maven中配置语言级别的详细信息。