Can't display state machine states -- register holding state machine bit "|c

[Altera_Forum]

What does this means? 

Warning: Can't display state machine states -- register holding state machine bit "|control|current_state.decR11" was synthesized away  according to the help file, ask me to examine design file to search for the error. the prob is how can i detect the problem?

[Altera_Forum]

haha, it was a stupid mistake. thanks guys. it's caused by carelessness. sorry for the false alarm

[Altera_Forum]

i have the same mistake, 

whats does it means?

[Altera_Forum]

what are you currently doing? a state machine? there must be something wrong with the flow of your state machine that causes your system to break its loop

[Altera_Forum]

--- Quote Start ---  i have the same mistake, whats does it means?  --- Quote End ---    Hi,  the warning indicates that the synthesis engine could remove the register from your design. Maybe the statemachine never reached this state ?  Kind regards  GPK