Liquibase plugin not working if project is not a root project

[ashishsinghdev]

Hi,

Gradle Version: 6.5
OS: Ubuntu 18.04.1

I'm facing an issue while configuring liquibase plugins. I've a multi-module project schema as

+fin
-----\schema
-----build.gradle
settings.gradle

schema is a subproject of fin rootProject without any settings.gradle file.
When I execute the task gradle generateChangelog from schema dir, It's throwing an error

==================================================

Task :schema:generateChangelog FAILED

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':schema:generateChangelog'.

No such property: activities for class: java.lang.String
==================================================

But interestingly, if I create an empty setting.gradle file under schema subproject directory the generateChangelog task works as expected.

Is it mandatory that project should be a rootProject (i.e. must exist settings.gradle file) in order to apply liquibase plugin or I just found a Bug?