org.openqa.selenium.WebDriverException: java.lang.NullPointerException Build info: version: 'unknown', revision: 'unknown', time: 'unknown' System info: host: 'kali', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.18.0-kali1-amd64', java.version: '1.7.0_75' Driver info: driver.version: FirefoxDriver

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java.lang.NullPointerException Build info: version: 'unknown', revision: 'unknown', time: 'unknown' System info: host: 'kali', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.18.0-kali1-amd64', java.version: '1.7.0_75' Driver info: driver.version: FirefoxDriver
org.openqa.selenium.WebDriverException: java.lang.NullPointerException Build info: version: 'unknown', revision: 'unknown', time: 'unknown' System info: host: 'kali', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '3.18.0-kali1-amd64', java.version: '1.7.0_75' Driver info: driver.version: FirefoxDriver
at org.openqa.selenium.firefox.internal.FileExtension.readIdFromInstallRdf(FileExtension.java:141)
at org.openqa.selenium.firefox.internal.FileExtension.writeTo(FileExtension.java:60)
at org.openqa.selenium.firefox.internal.ClasspathExtension.writeTo(ClasspathExtension.java:63)
at org.openqa.selenium.firefox.FirefoxProfile.installExtensions(FirefoxProfile.java:416)
at org.openqa.selenium.firefox.FirefoxProfile.layoutOnDisk(FirefoxProfile.java:394)
at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:89)
at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:112)
at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:194)
at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:187)
at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:105)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at org.python.core.PyReflectedConstructor.constructProxy(PyReflectedConstructor.java:210)
at org.python.core.PyReflectedConstructor.__call__(PyReflectedConstructor.java:179)
at org.python.core.PyObject.__call__(PyObject.java:345)
at org.python.core.PyMethod.instancemethod___call__(PyMethod.java:220)
at org.python.core.PyMethod.__call__(PyMethod.java:211)
at org.python.core.PyMethod.__call__(PyMethod.java:206)
at org.python.core.Deriveds.dispatch__init__(Deriveds.java:19)
at org.python.core.PyObjectDerived.dispatch__init__(PyObjectDerived.java:1057)
at org.python.core.PyType.type___call__(PyType.java:1565)
at org.python.core.PyType.__call__(PyType.java:1548)
at org.python.core.PyObject.__call__(PyObject.java:387)
at org.python.core.PyObject.__call__(PyObject.java:391)

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