When compiling Kotlin code for the Java Digital Machine (JVM), a particular goal Java model have to be specified. This goal dictates which Java platform APIs and options can be found throughout compilation and ensures compatibility with the meant runtime setting. An error message indicating an “unknown goal” sometimes arises when the Kotlin compiler encounters a Java model identifier it doesn’t acknowledge. For example, a configuration specifying Java 21 would possibly produce this error if the compiler is older than the Java 21 launch, or if the required Java Growth Package (JDK) for Java 21 will not be put in or appropriately configured.
Appropriately configuring the Java goal model is important for a number of causes. It prevents the unintentional use of APIs unavailable on the goal JVM, avoiding runtime crashes. It permits builders to leverage the newest options and efficiency enhancements in newer Java variations whereas sustaining compatibility with older environments if wanted. Traditionally, as Java has developed, new variations have launched enhancements and deprecated older options, necessitating this goal specification for seamless interoperability between Kotlin and the JVM.
