title: How to declare a git repository as gradle dependency if the repository is missing any tag?
body: <p>I'm trying to add a dependency on <a href="https://github.com/DaleKocian/VolleyAndRxJava" rel="nofollow noreferrer">https://github.com/DaleKocian/VolleyAndRxJava</a> from my project, but I'm getting an error:</p>
  
  <pre><code>Error:(130, 13) Failed to resolve: com.github.DaleKocian:VolleyAndRxJava:+
  &lt;a href="openFile:/Users/michaelosofsky/Developer/android-sdk-1.2/locuslabs-android-sdk/app/build.gradle"&gt;Show in File&lt;/a&gt;&lt;br&gt;&lt;a href="open.dependency.in.project.structure"&gt;Show in Project Structure dialog&lt;/a&gt;
  </code></pre>
  
  <p>I believe the problem is that I haven't specified the right tag, which,  as specified, is required in <a href="https://stackoverflow.com/questions/18748436/is-it-possible-to-declare-git-repository-as-dependency-in-android-gradle">Is it possible to declare git repository as dependency in android gradle?</a>.</p>
  
  <p>I don't know what to use a tag, because <a href="https://github.com/DaleKocian/VolleyAndRxJava" rel="nofollow noreferrer">https://github.com/DaleKocian/VolleyAndRxJava</a> doesn't seem to have any tag.</p>
  
  <p>According to <a href="https://stackoverflow.com/questions/32623290/gradle-dependency-version-syntax">Gradle dependency version syntax</a>, the syntax is specified with Ivy, but I can't tell from the Ivy documentation how I should specify there is no tag.</p>
  
  <p>Here is an excerpt from my build.gradle file:</p>
  
  <pre><code>repositories {
      mavenCentral()
  }
  
  dependencies {
      compile 'com.github.DaleKocian:VolleyAndRxJava:+'
  }
  </code></pre>
  
  <p>Here are other values I tried for the Tag:</p>
  
  <pre><code>'com.github.DaleKocian:VolleyAndRxJava:+'
  'com.github.DaleKocian:VolleyAndRxJava:'
  'com.github.DaleKocian:VolleyAndRxJava'
  'com.github.DaleKocian:VolleyAndRxJava:latest'
  'com.github.DaleKocian:VolleyAndRxJava:latest.integration'
  'com.github.DaleKocian:VolleyAndRxJava:latest.release'
  'compile 'com.github.DaleKocian:VolleyAndRxJava:latest.[any status]'
  </code></pre>
  
  <p>None of those worked though so how should I add <a href="https://github.com/DaleKocian/VolleyAndRxJava" rel="nofollow noreferrer">https://github.com/DaleKocian/VolleyAndRxJava</a> as a dependency in my build.gradle file?</p>