flink源码编译可以不编译scala代码吗

Hi,All: 我再尝试编译flink 1.7的源码时，遇到如下错误，本人对scala不是很了解，不知道是不是版本问题引起，另外可以去掉sacla模块编译吗： 本机scala版本：2.13.0 JDK 版本： 1.8.0_91 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project flink-scala_2.11: Compilation failure: Compilation failure: [ERROR] /Users/gang.gou/work/git/github/flink/flink-scala/src/main/java/org/apache/flink/api/scala/typeutils/ScalaEitherSerializerSnapshot.java:[67,44] 不兼容的类型: 无法推断org.apache.flink.api.java.typeutils.runtime.EitherSerializer<>的类型参数 [ERROR] 原因: 不存在类型变量L,R,T,T的实例, 以使org.apache.flink.api.java.typeutils.runtime.EitherSerializer<L,R>与org.apache.flink.api.common.typeutils.TypeSerializer<scala.util.Either<L,R>>一致 [ERROR] /Users/gang.gou/work/git/github/flink/flink-scala/src/main/java/org/apache/flink/api/scala/typeutils/ScalaEitherSerializerSnapshot.java:[78,86] 不兼容的类型: org.apache.flink.api.common.typeutils.TypeSerializer<scala.util.Either<L,R>>无法转换为org.apache.flink.api.java.typeutils.runtime.EitherSerializer<L,R> [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn -rf :flink-scala_2.11

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