Rockey not found or Driver not installed是啥意思

the driver is not installed properly or the hardware is not iTunes was not installed corrctly什么意思? 他显示的是The file is either damagd or was not installed correct. File or directory not found. The registration code was not installed or is invalid .Pleas the registration code was not installed or is invalid.Please The rigestration code was not installed or is invalid.please aap not found 意思 path or files not found这是为什么 the game is not properly installed什么意思 To be or not be,是啥意思? not seen or found very often