Notification: Performance of loadModel(Buildings): time 2.548/2.548, allocations: 268.2 MB / 275.3 MB, free: 6.449 MB / 218.7 MB Notification: Performance of FrontEnd - loaded program: time 4.475e-05/4.478e-05, allocations: 6.812 kB / 339.2 MB, free: 6.789 MB / 282.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3137/0.3138, allocations: 61.53 MB / 400.8 MB, free: 13.65 MB / 330.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 9.743/10.06, allocations: 4.478 GB / 4.869 GB, free: 131.5 MB / 0.5261 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003026/10.06, allocations: 97.61 kB / 4.869 GB, free: 131.5 MB / 0.5261 GB [/var/lib/hudson/slave/workspace/OpenModelica_TEST_LIBS/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 1.6/BoundaryConditions/SolarGeometry/ZenithAngle.mo:23:3-30:31:writable] Error: Failed to instantiate equation connect(weaBus.sol.dec, zen.decAng) annotation(Text(string = "%first", index = -1, extent = {{-6, 3}, {-6, 3}}));. Error: Error occurred while flattening model Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.Examples.SkyBrightness Notification: Performance of FrontEnd: time 0.00997/10.07, allocations: 2.431 MB / 4.872 GB, free: 131 MB / 0.5261 GB