Can't get plugin to load in gradle project

[crichey]

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I have the following in my build.gradle:

buildscript {
repositories {
jcenter()
mavenCentral()
maven { url 'http://dl.bintray.com/content/noamt/gradle-plugins' }

}
dependencies {
    classpath 'com.bmuschko:gradle-cargo-plugin:2.2.3'
}

}

plugins {
id "com.moowork.gulp" version "0.13"
id "com.moowork.node" version "0.13"
// id "com.bmuschko.cargo" version "2.2.1"
}
apply plugin: 'com.bmuschko.cargo'

However, when I try to run a cargo task I get the following error:
Cannot resolve external dependency org.codehaus.cargo:cargo-core-uberjar:1.4.15 because no repositories are defined.

[bmuschko]

You will need to define a repository on the top-level of your build script. Within the buildscript block is not good enough. It only tells Gradle to add the plugin to the build script's classpath and where it should come from. BTW: there's no need to define all of the repos you have in the list. Just pick one that has the plugin.

Please let me know if you need additional assistance.