Failed to apply plugin class 'nebula.plugin.release.ReleasePlugin'

Question

Trying to build micrometer version 1.5.9.

Getting following error:-

• Where: Build file '/Users/abc/Desktop/micrometer/build.gradle' line: 29

• What went wrong: A problem occurred evaluating root project 'micrometer'.

Failed to apply plugin class 'nebula.plugin.release.ReleasePlugin'. /Users/abc/Desktop/micrometer/config (Is a directory)

build.gradle

Line# 29 apply plugin: 'io.spring.release'

classpath 'io.spring.gradle:spring-release-plugin:0.20.1'
classpath 'com.netflix.nebula:nebula-project-plugin:3.4.0'

Any lead, what exactly is wrong here?

Thanks