selenium web驱动程序java.lang.NoClassDefFoundError:com/google/gson/JsonSyntaxException_Java_Selenium_Selenium Webdriver

selenium web驱动程序java.lang.NoClassDefFoundError:com/google/gson/JsonSyntaxException

java selenium selenium-webdriver

selenium web驱动程序java.lang.NoClassDefFoundError:com/google/gson/JsonSyntaxException,java,selenium,selenium-webdriver,Java,Selenium,Selenium Webdriver,正在尝试运行下面提到的简单测试selenium Web驱动程序：作为java应用程序运行后，出现以下错误： Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/JsonSyntaxException at org.openqa.selenium.firefox.Preferences.readDefaultPreferences(Preferences.java:95) at

正在尝试运行下面提到的简单测试selenium Web驱动程序：

作为java应用程序运行后，出现以下错误：

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/JsonSyntaxException
    at org.openqa.selenium.firefox.Preferences.readDefaultPreferences(Preferences.java:95)
    at org.openqa.selenium.firefox.Preferences.<init>(Preferences.java:65)
    at org.openqa.selenium.firefox.FirefoxProfile.<init>(FirefoxProfile.java:87)
    at org.openqa.selenium.firefox.FirefoxProfile.<init>(FirefoxProfile.java:77)
    at org.openqa.selenium.firefox.FirefoxProfile.<init>(FirefoxProfile.java:66)
    at org.openqa.selenium.firefox.FirefoxDriver.getProfile(FirefoxDriver.java:262)
    at org.openqa.selenium.firefox.FirefoxDriver.startClient(FirefoxDriver.java:239)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:114)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:193)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:186)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:182)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:95)
    at com.kesdee.ia.Mock_Exam.main(Mock_Exam.java:14)
Caused by: java.lang.ClassNotFoundException: com.google.gson.JsonSyntaxException
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 13 more

线程“main”java.lang.NoClassDefFoundError中的异常：com/google/gson/JsonSyntaxException 位于org.openqa.selenium.firefox.Preferences.readDefaultPreferences（Preferences.java:95）位于org.openqa.selenium.firefox.Preferences（Preferences.java:65）位于org.openqa.selenium.firefox.FirefoxProfile.（FirefoxProfile.java:87）位于org.openqa.selenium.firefox.FirefoxProfile.（FirefoxProfile.java:77）位于org.openqa.selenium.firefox.FirefoxProfile.（FirefoxProfile.java:66）位于org.openqa.selenium.firefox.FirefoxDriver.getProfile（FirefoxDriver.java:262）位于org.openqa.selenium.firefox.FirefoxDriver.startClient（FirefoxDriver.java:239）位于org.openqa.selenium.remote.RemoteWebDriver。（RemoteWebDriver.java:114）位于org.openqa.selenium.firefox.FirefoxDriver（FirefoxDriver.java:193）位于org.openqa.selenium.firefox.FirefoxDriver.（FirefoxDriver.java:186）位于org.openqa.selenium.firefox.FirefoxDriver（FirefoxDriver.java:182）位于org.openqa.selenium.firefox.FirefoxDriver.（FirefoxDriver.java:95）在com.kesdee.ia.Mock_-Exam.main上（Mock_-Exam.java:14）原因：java.lang.ClassNotFoundException:com.google.gson.JsonSyntaxException 位于java.net.URLClassLoader$1.run（未知源）位于java.net.URLClassLoader$1.run（未知源）位于java.security.AccessController.doPrivileged（本机方法）位于java.net.URLClassLoader.findClass（未知源）位于java.lang.ClassLoader.loadClass（未知源）位于sun.misc.Launcher$AppClassLoader.loadClass（未知源）位于java.lang.ClassLoader.loadClass（未知源） ... 还有13个

FireFox版本：36.0.1

Selenium:Selenium-java-2.45.0

您错过了类路径中的

gson-.jar:

。下载并添加它。

谢谢Jens，他添加了jar来构建路径，现在可以工作了。

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/JsonSyntaxException
    at org.openqa.selenium.firefox.Preferences.readDefaultPreferences(Preferences.java:95)
    at org.openqa.selenium.firefox.Preferences.<init>(Preferences.java:65)
    at org.openqa.selenium.firefox.FirefoxProfile.<init>(FirefoxProfile.java:87)
    at org.openqa.selenium.firefox.FirefoxProfile.<init>(FirefoxProfile.java:77)
    at org.openqa.selenium.firefox.FirefoxProfile.<init>(FirefoxProfile.java:66)
    at org.openqa.selenium.firefox.FirefoxDriver.getProfile(FirefoxDriver.java:262)
    at org.openqa.selenium.firefox.FirefoxDriver.startClient(FirefoxDriver.java:239)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:114)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:193)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:186)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:182)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:95)
    at com.kesdee.ia.Mock_Exam.main(Mock_Exam.java:14)
Caused by: java.lang.ClassNotFoundException: com.google.gson.JsonSyntaxException
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 13 more