Notification: Performance of loadModel(Buildings): time 2.675/2.675, allocations: 268.2 MB / 275.3 MB, free: 7.547 MB / 218.7 MB Notification: Performance of FrontEnd - loaded program: time 2.956e-05/2.96e-05, allocations: 8 kB / 339.2 MB, free: 7.836 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3244/0.3245, allocations: 61.54 MB / 400.8 MB, free: 13.83 MB / 330.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 0.1778/0.5024, allocations: 96.97 MB / 497.8 MB, free: 12.71 MB / 426.7 MB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003287/0.5027, allocations: 87.94 kB / 497.8 MB, free: 12.63 MB / 426.7 MB [/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.BaseClasses.Examples.EpsilonNTUZ Notification: Performance of FrontEnd: time 0.05195/0.5547, allocations: 9.971 MB / 0.4959 GB, free: 2.645 MB / 426.7 MB