title: java.lang.NoClassDefFoundError: io/restassured/mapper/factory/GsonObjectMapperFactory
body: <p>I am getting error when I try to execute script with rest assured framework. Please guide me to resolve the same. And I used below jars</p>
  
  <pre><code>Java version - 8
  rest-assured-2.8.0
  json-path-2.8.0
  hamcrest-all-1.3
  commons-lang3-3.0
  json-schema-validator-2.2.0
  
  
  
  &gt;FAILED: foo
      java.lang.NoClassDefFoundError: io/restassured/mapper/factory/GsonObjectMapperFactory
          at io.restassured.config.RestAssuredConfig.&lt;init&gt;(RestAssuredConfig.java:41)
          at io.restassured.RestAssured.&lt;clinit&gt;(RestAssured.java:420)
          at practice.GetRequest.foo(GetRequest.java:12)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
          at java.lang.reflect.Method.invoke(Unknown Source)
          at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:108)
          at org.testng.internal.Invoker.invokeMethod(Invoker.java:661)
          at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:869)
          at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1193)
          at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:126)
          at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
          at org.testng.TestRunner.privateRun(TestRunner.java:744)
          at org.testng.TestRunner.run(TestRunner.java:602)
          at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)
          at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)
          at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
          at org.testng.SuiteRunner.run(SuiteRunner.java:289)
          at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
          at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
          at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)
          at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)
          at org.testng.TestNG.runSuites(TestNG.java:1144)
          at org.testng.TestNG.run(TestNG.java:1115)
          at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
          at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
          at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)
      Caused by: java.lang.ClassNotFoundException: io.restassured.mapper.factory.GsonObjectMapperFactory
          at java.net.URLClassLoader.findClass(Unknown Source)
          at java.lang.ClassLoader.loadClass(Unknown Source)
          at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
          at java.lang.ClassLoader.loadClass(Unknown Source)
          ... 28 more
  
  
      ===============================================
          Default test
          Tests run: 1, Failures: 1, Skips: 0
      ===============================================
  
  
      ===============================================
      Default suite
      Total tests run: 1, Failures: 1, Skips: 0
      ===============================================
  </code></pre>