小女菜鸟一枚，还请大神们帮助，不胜感激~~

我安装了matlab 2011b和ISE14.3

但是在simulink里打不开system generator模块，双击设置它的属性时弹出错误：

1Error evaluating 'OpenFcn' callback of Xilinx System Generator Block block(mask) 'untitled/System Generator'

2Undefined variable "com" or class "com.xilinx.sysgen.util.StrategyUtil.loadAllStrategyNames"

matlab 2011b command window里warning：

Warning: xbsIndex.mdl, line 8: Error evaluating 'PreLoadFcn' callback
of block_diagram 'xbsIndex'. 
> In load_system at 21
In D:\ProgramFile\Xilinx\14.3\ISE_DS\ISE\sysgen\bin\nt\sl_customization.p>sl_customization at 18
In sl_refresh_customizations>call_all at 155
In sl_refresh_customizations at 78
In slcustomize at 4
In simulinkrc at 38 
Warning: Undefined variable "com" or class
"com.xilinx.sysgen.util.StrategyUtil.loadAllStrategyNames". 
> In load_system at 21
In D:\ProgramFile\Xilinx\14.3\ISE_DS\ISE\sysgen\bin\nt\sl_customization.p>sl_customization at 18
In sl_refresh_customizations>call_all at 155
In sl_refresh_customizations at 78
In slcustomize at 4
In simulinkrc at 38

是什么原因啊~~~~~~请各位大神帮助