Welcome to the RAS Solution Forums HEC-RAS Help 2D Sediment Modeling Fatal Error 157

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  • #16209
    Parker Just
    Participant

    Hello,

    I’ve been getting the dreaded fatal error 157 when trying to run a 2D sediment transport model. Before running sediment, I had a fully functional 2D hydraulic model that worked great, so it’s clearly something with the sediment features. I’m a beginner at sediment modeling, but I feel like I’ve gone through and followed tutorials as best as I can. Anybody got tips/tricks for this? See below for error message:

    Performing Unsteady Flow Simulation HEC-RAS 6.2 March 2022
    forrtl: severe (157): Program Exception – access violation
    Image PC Routine Line Source
    RasUnsteadySedime 00007FF6849FE9BC Unknown Unknown Unknown
    RasUnsteadySedime 00007FF67EC9C2B1 Unknown Unknown Unknown
    RasUnsteadySedime 00007FF67E1D87C9 READ_UN_S2D_BC 102 Read_UN_S2D_BC.f90
    RasUnsteadySedime 00007FF67E097653 READ_UN_S2D 150 Read_UN_S2D.f90
    RasUnsteadySedime 00007FF67E2F12CC SNETREAL2 189 Snetreal2.for
    RasUnsteadySedime 00007FF67E21C1DC UNETREAL 75 Unetreal.for
    RasUnsteadySedime 00007FF67DFF83A4 UNET_START 143 Unet_start.for
    RasUnsteadySedime 00007FF67E146977 MAIN__ 70 Unet.for
    RasUnsteadySedime 00007FF67F3D55BE Unknown Unknown Unknown
    RasUnsteadySedime 00007FF6849BB979 Unknown Unknown Unknown
    RasUnsteadySedime 00007FF6849BB89E Unknown Unknown Unknown
    RasUnsteadySedime 00007FF6849BB75E Unknown Unknown Unknown
    RasUnsteadySedime 00007FF6849BB9EE Unknown Unknown Unknown
    KERNEL32.DLL 00007FF91F987034 Unknown Unknown Unknown
    ntdll.dll 00007FF9216E26A1 Unknown Unknown Unknown

    Error with program: RasUnsteadySediment.exe Process Count = 16 Exit Code = 157

    #16213
    Parker Just
    Participant

    To follow up: I’ve narrowed this error down to my boundary conditions. When I turn off my inflow hydrographs, the model runs. Obviously I can’t do that in the grand scheme of the project so I’m curious if anyone has any tips.

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