Notification: Performance of loadModel(Buildings): time 2.389/2.389, allocations: 268.2 MB / 275.3 MB, free: 6.59 MB / 218.7 MB Notification: Performance of FrontEnd - loaded program: time 2.711e-05/2.749e-05, allocations: 4 kB / 339.2 MB, free: 6.887 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3173/0.3174, allocations: 61.52 MB / 400.8 MB, free: 13.68 MB / 330.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 12.55/12.86, allocations: 5.587 GB / 5.979 GB, free: 55.44 MB / 0.5261 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003061/12.86, allocations: 86.02 kB / 5.979 GB, free: 55.39 MB / 0.5261 GB [/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 1.6/Fluid/HeatExchangers/BaseClasses/ntu_epsilonZ.mo:59:5-59:81:writable] Error: Cannot resolve type of expression 0 < flowRegime. The operands have types Integer, enumeration(ParallelFlow, CounterFlow, CrossFlowUnmixed, CrossFlowCMinMixedCMaxUnmixed, CrossFlowCMinUnmixedCMaxMixed) in component . Error: Error occurred while flattening model Buildings.Fluid.HeatExchangers.Examples.DryEffectivenessNTUMassFlow Notification: Performance of FrontEnd: time 3.868/16.73, allocations: 0.7718 GB / 6.751 GB, free: 55.52 MB / 0.5417 GB