[    0.00] Setting up Pyomo environment
[    0.00] Applying Pyomo preprocessing actions
[    0.00] Creating model
ERROR: Constructing component 'checkPN' from data=None failed:
        ValueError: BuildCheck 'checkPN' identified error
[    0.01] Pyomo Finished
ERROR: Unexpected exception while running model:
        BuildCheck 'checkPN' identified error
