SonarRunner with gradle: Fail to download libraries from server

Question

I have updated Sonar to the 4.5.1 LTS version, and now in my gradle task i have got the following error and can't fix it:

Fail to download libraries from server

build.gradle with sonar runner

sonarRunner {
 sonarProperties {
    property "sonar.host.url", "http://sonar:9000"
    property "sonar.login", ""
    property "sonar.password", ""
    property "sonar.jdbc.url", "jdbc:mysql://sonar"
    property "sonar.jdbc.driverClassName", "com.mysql.jdbc.Driver"
    property "sonar.jdbc.username", "sonar"
    property "sonar.jdbc.password", "sonar"
    property "sonar.profile", "sonar"
    property "sonar.projectName", "sonar"
    property "sonar.language", "java"
    property "sonar.sources", "src/main/java"
    property "sonar.binaries", "build";
 }
}

i've tried to write this property, but nothing happend:

toolVersion = '2.3' // default

Answer 1

Recent Sonar versions require Gradle 2.2. (2.1 might also work but I'm not sure.)