title: TestNG problems when running the project
body: <p>Below is the reported error when I run <code>TestNG.xml</code>. Even though I changed the scope to compile, it still is not fixed. I've also built the project again. I would appreciate if someone can give a feasible solution for this.</p>
  
  <pre><code>Exception in thread "main" org.testng.TestNGException:
  6.1.1 is not a supported TestNG version
    at org.testng.remote.support.ServiceLoaderHelper.getFirst(ServiceLoaderHelper.java:22)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:43)
  </code></pre>
  
  <p><strong>Project's pom.xml file:</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;project xmlns="http://maven.apache.org/POM/4.0.0"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
  
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  
      &lt;groupId&gt;TestVagrant&lt;/groupId&gt;
      &lt;artifactId&gt;1&lt;/artifactId&gt;
      &lt;version&gt;1.0-SNAPSHOT&lt;/version&gt;
  
      &lt;dependencies&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.seleniumhq.selenium&lt;/groupId&gt;
              &lt;artifactId&gt;selenium-java&lt;/artifactId&gt;
              &lt;version&gt;2.46.0&lt;/version&gt;
          &lt;/dependency&gt;
  
          &lt;dependency&gt;
              &lt;groupId&gt;org.testng&lt;/groupId&gt;
              &lt;artifactId&gt;testng&lt;/artifactId&gt;
              &lt;version&gt;6.1.1&lt;/version&gt;
              &lt;scope&gt;compile&lt;/scope&gt;
          &lt;/dependency&gt;
  
          &lt;dependency&gt;
              &lt;groupId&gt;io.appium&lt;/groupId&gt;
              &lt;artifactId&gt;java-client&lt;/artifactId&gt;
              &lt;version&gt;3.0.0&lt;/version&gt;
              &lt;scope&gt;test&lt;/scope&gt;
          &lt;/dependency&gt;
      &lt;/dependencies&gt;
  
  &lt;/project&gt;
  </code></pre>
  
  <p>Below is the TestNG XML:    </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd"&gt;
  &lt;suite name="Suite"&gt;
    &lt;test name="Test"&gt;
      &lt;classes&gt;
        &lt;class name="scenarios.AppiumTest"/&gt;
      &lt;/classes&gt;
    &lt;/test&gt; &lt;!-- Test --&gt;
  &lt;/suite&gt; &lt;!-- Suite --&gt;
  </code></pre>