问题
Error:Kotlin: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.6.0, expected version is 1.1.13.
Warning:Kotlin: Runtime JAR files in the classpath should have the same version. These files were found in the classpath:
C:/Users/xxx/.m2/repository/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.5.31/kotlin-stdlib-jdk8-1.5.31.jar (version 1.5)
C:/Users/xxx/.m2/repository/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.5.31/kotlin-stdlib-jdk7-1.5.31.jar (version 1.5)
C:/Users/xxx/.m2/repository/org/jetbrains/kotlin/kotlin-stdlib-common/1.5.31/kotlin-stdlib-common-1.5.31.jar (version 1.5)
C:/Users/xxx/.m2/repository/org/jetbrains/kotlin/kotlin-stdlib/1.6.20/kotlin-stdlib-1.6.20.jar (version 1.6)
Warning:Kotlin: Some runtime JAR files in the classpath have an incompatible version. Consider removing them from the classpath
IDEA莫名其妙出现此问题，Build->Rebuild Project 就好了，具体原因未知。
参考
Idea编译项目,突然报错：Error:Kotlin: Module was compiled with an incompatible version of Kotlin.
标签：1.5,incompatible,Kotlin,31,version,报错,stdlib,kotlin From： https://www.cnblogs.com/strongmore/p/17973830