Hi, I am working with I1850Clm50SpCru compset, but the model results do not provide GPP, how to use FPSN to calculate GPP? In addition, I tried to run a test case, and when I tried to build this case, I got the following errors: Invalid values ['10800.0'] ERROR: Variable 'coupling_period' has invalid value ['10800.0']. Thanks in advance. Best, Dong