[ADMB Users] Compile Error

[Armando Mastracci]

Brand new to admb.  I've just spent the last 4 hours trying to get past this error.  No luck...

I'm running into compile errors at parts of my code where I assign a parameter to a local variable.  "error: cannot convert ‘prevariable’ to ‘double’ in assignment"

I've tried using value(param) without luck.

My parameters have upper and lower bounds.  Here is an excerpt:

DATA_SECTION 
<snip>
  number adjusted_pmax

PARAMETER_SECTION
  init_bounded_number pmax(150,700)
  init_bounded_number pmax_drift(-.2,.2)

and here is the assignment that is causing the error:

//calculate adjusted pmax

    adjusted_pmax = pmax *(1+pmax_drift*(aerobic_capacity - aerobic_bal+1)/(aerobic_capacity));


Am I missing something or is there something else wrong. I'm getting the same error both on MacOSX and Linux so likely not something to do with my environment.

Thanks.