问使用Gradle构建应用程序时出错-没有方法签名: build_49q3y83g7hdxe5s51k5187z33.publishing()

EN

plugins {
    id 'java'
    id 'org.springframework.boot' version '2.2.2.RELEASE'
    id 'io.spring.dependency-management' version '1.0.8.RELEASE'
}

group 'com.example'
version '1.0-SNAPSHOT'

sourceCompatibility = 1.8

apply plugin: 'maven-publish'

publishing {
    publications {
        maven(MavenPublication) {
            artifacts("build/libs/my-app-$version"+".jar") {
                extension = 'jar'
            }
        }   
    }

    repositories {
        maven {
            name'nexus'
            url "http://someip:someport/repository/maven-snapshots/"
            credentials {
                username project.repoUser
                password project.repoPassword
            }
        }
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation group: 'net.logstash.logback', name: 'logstash-logback-encoder', version: '5.2'
    testImplementation group: 'junit', name: 'junit', version: '4.12'
}

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/matteo/Desktop/devops_bootcamp/java-app/build.gradle' line: 14

* What went wrong:
A problem occurred evaluating root project 'my-app'.
> No signature of method: build_49q3y83g7hdxe5s51k5187z33.publishing() is applicable for argument types: (build_49q3y83g7hdxe5s51k5187z33$_run_closure1) values: [build_49q3y83g7hdxe5s51k5187z33$_run_closure1@79692f52]