Gradlew build not working

Question

When I'm trying to clean my project with ./gradlew clean it works, but the ./gradlew build won't work. I tried a few repositories, but it can't resolve the Spring dependencies.

Here is the build.gradle:

apply plugin: 'war'

war {
    baseName = 'hello'
}

configurations {
    providedRuntime
}

dependencies {

    compile('org.springframework.boot:spring-boot-starter-web')
    compile('org.json:json:20141113')
    compile('com.jayway.jsonpath:json-path:0.8.1')
    compile('org.jsoup:jsoup:1.8.2')
    compile('org.springframework.social:spring-social-twitter')
    compile('org.springframework.social:spring-social-twitter:1.1.0.RELEASE')
    compile('org.springframework.social:spring-social-core')
    providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')
    testCompile('org.springframework.boot:spring-boot-starter-test')
}

repositories {
        mavenCentral()
}

And here the exception:

* What went wrong:
Could not resolve all dependencies for configuration ':compile'.
> Cannot resolve external dependency org.springframework.boot:spring-boot-starter-web: because no repositories are defined.
  Required by:
      :hello:unspecified
> Cannot resolve external dependency org.json:json:20141113 because no repositories are defined.
  Required by:
      :hello:unspecified
> Cannot resolve external dependency com.jayway.jsonpath:json-path:0.8.1 because no repositories are defined.
  Required by:
      :hello:unspecified
> Cannot resolve external dependency org.jsoup:jsoup:1.8.2 because no repositories are defined.
  Required by:
      :hello:unspecified
> Cannot resolve external dependency org.springframework.social:spring-social-twitter:1.1.0.RELEASE because no repositories are defined.
  Required by:
      :hello:unspecified
> Cannot resolve external dependency org.springframework.social:spring-social-twitter:1.1.0.RELEASE because no repositories are defined.
  Required by:
      :hello:unspecified
> Cannot resolve external dependency org.springframework.social:spring-social-core: because no repositories are defined.
  Required by:
      :hello:unspecified

I thought the maven repo is enough but it keeps failing I also tried it with jcenter(). Im working on a ubuntu 14.04 VM.

SOLVED:

As Michael said in the comments I had to add a version for the dependency:

compile('org.springframework.boot:spring-boot-starter-web')
compile('org.springframework.boot:spring-boot-starter-web:1.3.3.RELEASE')

Answer 1

First, declare repositories before dependencies. And second, replace

compile('org.springframework.boot:spring-boot-starter-web')

with

compile('org.springframework.boot:spring-boot-starter-web:1.3.3.RELEASE')

because the former doesn't contain a version.