Here's a screenshot of the type of error message you may see:

That usually means you've got an output in the calibrator linked to more than one input in the simulator. Here are some things to check:

• search the callink.samm file for the offending variable to make sure it only shows up once
• double check that it's not a binding link
• check the .v file for the calculator to make sure the variable is marked correctly as an input
• make sure that it is an output in the calibrator mapping to the input in the simulator