When a model fails to run, a red error message will be displayed at the bottom of the screen. A list of common error messages and what they mean can be found below.
|Type of Error||
Example of Error Message
|Invalid R expression used in formula, preventing it from being evaluated.||Error in parameter "p_sick_nat", syntax error in R expression.|
|Formula refers to variable that does not exist, or that was undefined when formula was evaluated.||Error in parameter 'p_sick_new', object "p_death_new" not found|
|One or more variables contain circular references.||Circular reference in parameters: "p_death_new", "p_death_nat"|
|Model exceeds maximum allowed memory storage, preventing it from running.||Apologies, your model exceeded the maximum memory allowed. Please shorten the timeframe or reduce the number of tunnel states in your model|
|Transition probabilities in a Markov model are either < 0 or > 1.||
Some transition probabilities are outside the interval [0 - 1]:
cycle: 1, from: well, to: well
cycle: 2, from: well, to: well
cycle: 3, from: well, to: well
|Transition probabilities in a Markov model in one or more states and/or cycles do not sum to 1.||
Not all transition matrix rows sum to 1.
|More than one transition associated with the same 'from' state used keyword 'C'.||
Error in transition matrix, keyword "C" used more than once per state: