Could not get unknown property 'assembleRelease' for project ':app' of type org.gradle.api.Project.

Could not get unknown property 'assembleRelease' for project ':app' of type org.gradle.api.Project.

解決方法：

assembleRelease.finalizedBy(check) 
改成：

tasks.whenTaskAdded { task ->    if (task.name == 'assembleRelease') {        task.finalizedBy 'check'    }}