What should I do to avoid this exception when I try to run my selenium tests with testNG.
org.testng.TestNGException: Can not instantiate class TestCaseJuntos.BeforeandAfterclass at org.testng.internal.ObjectFactoryImpl.newInstance (ObjectFactoryImpl.java:40) at org.testng.internal.ClassHelper.createInstance1 (ClassHelper.java:382) at org.testng.internal.ClassHelper.createInstance (ClassHelper.java:295) at org.testng.internal.ClassImpl.getDefaultInstance (ClassImpl.java:118) at org.testng.internal.ClassImpl.getInstances (ClassImpl.java:183) at org.testng.internal.TestNGClassFinder. (TestNGClassFinder.java:128) at org.testng.TestRunner.initMethods (TestRunner.java:416) at org.testng.TestRunner.init (TestRunner.java:242) at org.testng.TestRunner.init (TestRunner.java:212) at org.testng.TestRunner. (TestRunner.java:166) at org.testng.remote.support.RemoteTestNG6_9_7 $ 1.newTestRunner (RemoteTestNG6_9_7.java:26) at org.testng.remote.support.RemoteTestNG6_9_7 $ DelegatingTestRunnerFactory.newTestRunner (RemoteTestNG6_9_7.java:59) at org.testng.SuiteRunner $ ProxyTestRunnerFactory.newTestRunner (SuiteRunner.java:587) at org.testng.SuiteRunner.init (SuiteRunner.java:161) at org.testng.SuiteRunner. (SuiteRunner.java:114) at org.testng.TestNG.createSuiteRunner (TestNG.java:1290) at org.testng.TestNG.createSuiteRunners (TestNG.java:1277) at org.testng.TestNG.runSuitesLocally (TestNG.java:1131) at org.testng.TestNG.run (TestNG.java:1048) at org.testng.remote.AbstractRemoteTestNG.run (AbstractRemoteTestNG.java:126) at org.testng.remote.RemoteTestNG.initAndRun (RemoteTestNG.java:152) at org.testng.remote.RemoteTestNG.main (RemoteTestNG.java:57) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0 (Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance (NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance (DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance (Constructor.java:423) at org.testng.internal.ObjectFactoryImpl.newInstance (ObjectFactoryImpl.java:29) ... 21 more Caused by: java.lang.NoSuchMethodError: org.apache.http.params.HttpConnectionParams.setSoReuseaddr (Lorg / apache / http / params / HttpParams; Z) V at org.openqa.selenium.remote.internal.HttpClientFactory.getHttpParams (HttpClientFactory.java:84) at org.openqa.selenium.remote.internal.HttpClientFactory. (HttpClientFactory.java:52) at org.openqa.selenium.remote.HttpCommandExecutor. (HttpCommandExecutor.java:100) at org.openqa.selenium.remote.HttpCommandExecutor. (HttpCommandExecutor.java:81) at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start (NewProfileExtensionConnection.java:81) at org.openqa.selenium.firefox.FirefoxDriver.startClient (FirefoxDriver.java:244) at org.openqa.selenium.remote.RemoteWebDriver. (RemoteWebDriver.java:110) at org.openqa.selenium.firefox.FirefoxDriver. (FirefoxDriver.java:190) at org.openqa.selenium.firefox.FirefoxDriver. (FirefoxDriver.java:183) at org.openqa.selenium.firefox.FirefoxDriver. (FirefoxDriver.java:179) at org.openqa.selenium.firefox.FirefoxDriver. (FirefoxDriver.java:92) at TestCaseJuntos.BeforeandAfterclass. (BeforeandAfterclass.java:23) ... 26 more