org.gradle.api.tasks.compile.CompileOptions
Gradle sync failed: Cause: org.gradle.api.tasks.compile.CompileOptions.setBootClasspath(Ljava/lang/String;)V
Solution

Solution
open gradle-wrapper.properties file
Change gradle-6.1.1-all.zip to gradle-4.6-all.zip
distributionBase=GRADLE_USER_HOME distributionPath=wrapper/dists zipStoreBase=GRADLE_USER_HOME zipStorePath=wrapper/dists #distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip