This is my problem with hec ras:
Plan: ‘run_cañadas’ (cañadas.p01)
Simulation started at: 31May2018 07:20:01 PM
Using 64 Bit Computation Engines
Writing Geometry
2d_area: Mesh property tables are current.
Completed Writing Geometry
Geometric Preprocessor HEC-RAS 5.0.3 September 2016
Finished Processing Geometry
Writing Event Conditions
Event Conditions Complete
Performing Unsteady Flow Simulation HEC-RAS 5.0.3 September 2016
forrtl: severe (166): Program Exception – privileged instruction
Image PC Routine Line Source
RasUnsteady64.exe 00007FF72F30F760 Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72F6D3C08 Unknown Unknown Unknown
Error with program: RasUnsteady64.exe Exit Code = 166
Computations Summary
Computation Task Time(hh:mm:ss)
Completing Geometry 2
Preprocessing Geometry(64) <1
Unsteady Flow Computations(64) 13
Complete Process 15
RasUnsteady64.exe 00007FF72F6D383E Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72F62F188 Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72F678896 Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72F41F55B Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72F43F98E Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72FDAF8C6 Unknown Unknown Unknown
RasUnsteady64.exe 00007FF72F95FC22 Unknown Unknown Unknown
KERNEL32.DLL 00007FFBA7CB1FE4 Unknown Unknown Unknown
ntdll.dll 00007FFBAA46F061 Unknown Unknown Unknown
could someone help me solve it? Thanks