Plugin with id 'org.sonarqube' not found - spring-boot

Question

I am trying to implement sonar with gradle for code-coverage measure for my project.
we are using gradle-4.0.1 and sonarqube-6.4 .
when I run gradle sonarqube from command line I get this error-
Plugin with id 'org.sonarqube' not found.
I tried few code changes but no luck, please help.
My build.gradle file is as below-
buildscript {
ext {
springBootVersion = '1.5.4.RELEASE'
}
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'org.sonarqube'
apply plugin: "jacoco"
apply plugin: "java"
apply plugin: "war"
apply plugin: "org.springframework.boot"
sonarqube {
properties {
property "sonar.projectName","Spring4WebService Code Coverage Demo"
property "sonar.projectKey", "org.sonarqubeJacocoCodeCoverage"
property "sonar.reportPath" , "${project.buildDir}/jacoco/test.exec"
}
}
test{
ignoreFailures = true
}
ext {
jacocoVersion = '0.7.6.201602180812'
}
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
mavenCentral()
}
sourceSets {
main.java.srcDir "src/main/java"
test.java.srcDir "src/test/java"
}
springBoot {
mainClass = "com.concretepage.config.WebAppInitializer"
}
dependencies {
compile('org.springframework.boot:spring-boot-starter-web','com.fasterxml.jackson.core:jackson-databind')
testCompile('org.springframework.boot:spring-boot-starter-test')
}
jacoco{
toolVersion = "${jacocoVersion}"
}
jacocoTestReport {
reports{
html.enabled=true
xml.enabled=true
csv.enabled=true
}
}

Answer 1

Just like the 'org.springframework.boot' plugin, the 'org.sonarqube' plugin does not belong to Gradle. It is a third-party plugin, so you need to add it as a buildscript dependency:
buildscript {
ext {
springBootVersion = '1.5.4.RELEASE'
}
repositories {
mavenCentral()
maven {
url "https://plugins.gradle.org/m2/"
}
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
classpath "org.sonarsource.scanner.gradle:sonarqube-gradle-plugin:2.5"
}
}
Now apply plugin: 'org.sonarqube' should work fine.

Answer 2

In my case it looks like:
plugins {
id 'groovy'
id 'application'
id 'org.sonarqube' version '3.0'
}
repositories {
mavenCentral()
}
sonarqube {
properties {
property "sonar.host.url", "http://sonarqube:9000"
property "sonar.sources", "src"
}
}
tasks['sonarqube'].dependsOn test

Answer 3

Using the plugins DSL specifying a full version (e.g., id "org.sonarqube" version "3.5.0.2730" instead of id "org.sonarqube" version "3.5.0") in the plugins section of build.gradle resolved this issue for me.
Here are examples for plugins DSL and legacy plugin application: https://plugins.gradle.org/plugin/org.sonarqube