Lattice pin fitting problem

[jay_ec_engg]

I am facing problem in assigning pins as per useir defined location..
I am using some 56% only of the device logic and 68% pin usage.
The tool (ispLEVER) is automatically assigning the pins and Auto-fitting wise its not giving any problem. But when I am trying to assing pins as per my design, its shwoing errors... Even if I assign the same pin ( locking the pins) which tool already assigned ( so that it will nto change next time) then also its giving fitting error. How can it be possible ??
I am using ispLEVER version 4.2
Do anyone know whats the problem.. or which constraint setting can help me ?

 

[my_garden]

Open "Auto Buffering" in "constraint edit"=>"Global constraint"
Also you can try to install the sp1 for LEVER4.2

 

[jay_ec_engg]

I am facing problem to assing Global Reset Pin... while i m trying to assign the reset signal of the logic to this pin , the error message coming that signal 'PLD_RESET' is not reset input to all the reset equations....
What would be the problem ???

 

[my_garden]

Is there some logic function with this signal?
And have you already installed the sp1 for 4.2