why doesn't the gradle repository definition work? - gradle

Question

I'm at a loss why gradle is ignoring the 'repository' section of a pretty simple build.gradle file. We're behind a firewall, using a JFrog repository to use our own scanned versions of things, not Maven central. When I run 'gradle compile', I get:
FAILURE: Build failed with an exception.
Where:
Build file '/Users/exampleuser/src/example/tlp-platform-portal/build.gradle' line: 2
What went wrong:
Plugin [id: 'org.springframework.boot', version: '2.6.3'] was not found in any of the following sources:
Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
Plugin Repositories (could not resolve plugin artifact 'org.springframework.boot:org.springframework.boot.gradle.plugin:2.6.3')
Searched in the following repositories:
Gradle Central Plugin Repository
But my build.gradle has no mention of Gradle central; the file looks like the attached.
--------build.gradle---------------------
id 'org.springframework.boot' version '2.6.3'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
id 'war'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
maven {
url 'https://example.jfrog.io/artifactory/penalty-maven-local'
credentials {
username = System.getenv('ARTIFACT_USERNAME')
password = System.getenv('ARTIFACT_PASSWORD')
}
}
maven {
url 'https://example.jfrog.io/artifactory/dha-gradle-plugin-remote-cache'
credentials {
username = System.getenv('ARTIFACT_USERNAME')
password = System.getenv('ARTIFACT_PASSWORD')
}
}
maven {
url 'https://example.jfrog.io/artifactory/plugins-release'
credentials {
username =System.getenv('ARTIFACT_USERNAME')
password =System.getenv('ARTIFACT_PASSWORD')
}
}
maven {
url "https://example.jfrog.io/example/libs-snapshot"
credentials {
username = System.getenv('ARTIFACT_USERNAME')
password = System.getenv('ARTIFACT_PASSWORD')
}
}
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-data-jdbc'
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-security'
implementation 'org.springframework.boot:spring-boot-starter-web'
(lots more)

Answer 1

Repositories for plugins resolution must be configured in the settings.gradle file, see detailed explanation why to use custom/private repositories here : https://docs.gradle.org/current/userguide/plugins.html#sec:custom_plugin_repositories