遇到问题啦，请各位帮忙，谢谢啦

m945

因为前面的问题没有解决，所以今天索性把ama2卸载，重新安装。但是再玩以前安装的任务就出现不能玩的现象：you cannot play/edit this mission it is dependent on downloadable content that has been deleted .Ard_mcp_inf1.
如果用ace玩就出现you cannot play/edit this mission it is dependent on downloadable content that has been deleted .Ard_mcp_inf1-ACE
但不是每个以前的任务都不能玩。不知什么原因？怎么解决？望各位老鸟帮忙，实在太郁闷了。
另，需要的插件都装了。
先谢谢大家了，实在太郁闷。