我是在EAS 7.5服务器上装了bos7.5然后导入的解决方案，但是，启动bos服务器后，启动客户端报连接错误：
Caused exception message is: Server(tcp://localhost) connect fail.
com.kingdee.eas.base.license.LicenseException: null
Caused exception message is: Server(tcp://localhost) connect fail.
at com.kingdee.eas.base.license.client.LicenseSrvAgentFactory.getRemoteInstance(Unknown Source)
at com.kingdee.eas.base.uiframe.client.LoginFrame.setEditionTipContent(LoginFrame.java:1315)
at com.kingdee.eas.base.uiframe.client.LoginFrame.initProjectLogo(LoginFrame.java:1303)
at com.kingdee.eas.base.uiframe.client.LoginFrame.initRes(LoginFrame.java:1150)
at com.kingdee.eas.base.uiframe.client.LoginFrame.initLoginAction(LoginFrame.java:722)
at com.kingdee.eas.base.uiframe.client.LoginFrame.jbInit(LoginFrame.java:489)
at com.kingdee.eas.base.uiframe.client.LoginFrame.(LoginFrame.java:252)
at com.kingdee.eas.base.uiframe.client.LoginFrame.(LoginFrame.java:241)
at com.kingdee.eas.base.uiframe.client.LoginFrame.getInstance(LoginFrame.java:204)
at com.kingdee.eas.base.uiframe.client.LoginFrame.main(LoginFrame.java:1692)
Caused by: (type:6002) (errorCode:500) com.kingdee.bos.rpc.ce.RPCConnectException: Server(tcp://localhost) connect fail.

解决了，是datasourse.xml 文件中的密码有空格转成：&；的时候只剩下&（系统启动测试的时候，报&是不允许的），加上就可以启动了。谢谢版主。
连接地址检查下
我从服务直接拷贝解决方案，在本机上打开拷贝的解决方案然后出现上述情况的。