cognos8安装求教

安装了好几次,总是出现这个错误,原来以为一定要安装数据库,刚才知道不用单独安装数据库,还没试呢,问下这个原因是怎么造成的啊!
谢谢了.
03:02:06, 'LogService', 'StartService', 'Success'.
03:02:10, '', 'CallEnd', 'Failure'.
03:02:10, CM-CFG-5060 A Content Manager configuration error was detected while loading parameters.  CM-CFG-5084 An error occurred while reading the startup configuration file. Cause: CAM-CRP-1064 发生内部错误，无法处理 PKCS #7 数据。 无法读取密钥库“E:/cognos/c8/configuration/cskjCSKKeystore”的内容。 原因：java.io.IOException: com.sun.crypto.provider.SealedObjectForKeyProtector    Runtime Exception stack trace:  com.cognos.cclcfgapi.CCLConfigurationException: CAM-CRP-1064 发生内部错误，无法处理 PKCS #7 数据。 无法读取密钥库“E:/cognos/c8/configuration/cskjCSKKeystore”的内容。 原因：java.io.IOException: com.sun.crypto.provider.SealedObjectForKeyProtector          at com.cognos.cclcfgapi.CCLConfiguration2.decryptString(CCLConfiguration2.java:1710)          at com.cognos.cclcfgapi.CCLConfiguration2.decryptXML(CCLConfiguration2.java:1754)          at com.cognos.cclcfgapi.CCLConfiguration2.decryptXML(CCLConfiguration2.java:1781)          at com.cognos.cclcfgapi.CCLConfiguration2.decryptXML(CCLConfiguration2.java:1781)          at com.cognos.cclcfgapi.CCLConfiguration2.decryptXML(CCLConfiguration2.java:1781)          at com.cognos.cclcfgapi.CCLConfiguration2.getValue(CCLConfiguration2.java:893)          at com.cognos.cclcfgapi.CCLConfiguration2.getValue(CCLConfiguration2.java:454)          at com.cognos.cm.server.CMConfiguration.loadInitializationParameters(CMConfiguration.java:252)          at com.cognos.cm.server.CMServlet.init(CMServlet.java:2022)          at com.cognos.cm.server.ContentManager.start(ContentManager.java:301)          at com.cognos.cm.server.ContentManagerLifecycleHandler.start(ContentManagerLifecycleHandler.java:63)          at com.cognos.pogo.services.DefaultHandlerService.start(DefaultHandlerService.java:101)          at com.cognos.pogo.services.DispatcherServices.startInititalServices(DispatcherServices.java:416)          at com.cognos.pogo.transport.PogoServlet$PogoStartup.run(PogoServlet.java:681)          at java.lang.Thread.run(Thread.java:810)  
03:02:11, 'ContentManager', 'getActiveContentManager', 'Failure'.
DPR-CMI-4006 Unable to determine the active Content Manager. Will retry periodically.
03:13:11, '', 'CallEnd', 'Failure'.
03:13:11, 'com.cognos.pogo.bibus.SOAPMessageOutputter', 'pogo', 'Failure'.
DPR-DPR-1035 Dispatcher detected an error.
CAM-CRP-1093 无法读取密钥库“E:/cognos/c8/configuration/cskjCSKKeystore”的内容。 原因：java.io.IOException: com.sun.crypto.provider.SealedObjectForKeyProtector收起