Welcome to the RAS Solution › Forums › HEC-RAS Help › “Unhandled Exception” errors in August 2015 Beta Version

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  • November 3, 2015 at 9:21 pm #5925
    Anonymous
    Guest

    When trying to develop terrain in RasMapper, I am getting the following errors:

    “Unhandled exception has occurred in a component in your application… The path is not of a legal form” or
    “Unhandled exception has occurred in a component in your application… No row can be added to a DataGridView control that does not have columns. Columns must be added first”

    I don’t believe there is a problem in the data because I have tried to create terrain from numerous files, including .flt files I had used in the previous beta version and .adf files that came from a tutorial.

    I am going to try a re-install this version, but has anyone else experienced this problem and does anyone know of potential solutions?

    Thanks in advance!

    November 3, 2015 at 10:30 pm #9553
    Anonymous
    Guest

    Just to update the re-install did not solve the problem.. I’ve gone and built terrain from the same files in the previous (10/2014) release so it looks like the files are not the problem and it might be some kind of bug…. I have also tried on two different computers with the August 2015 version and had the same problem.
    Any suggestions would be greatly appreciated.
    Thanks again

    March 10, 2016 at 8:15 am #9554
    Anonymous
    Guest

    Same issue here. HEC-RAS 5.0, have it installed on Windows 8.1 64bit, Windows 7 64bit and Windows 7 32bit. RAS Mapper–>Tools–>New Terrain (after setting the projection). The error is:

    Unhandled exception, The path is not of a legal form.

    March 10, 2016 at 8:30 am #9555
    Anonymous
    Guest

    …It just occurred to me that maybe I should have created a new HEC-RAS Project before starting to try to create a new terrain.

    To fix this issue I first went to HEC-RAS’s File Menu–>New Project

    Then went to RAS Mapper–>Tools–>Set Projection for Project

    Then RAS Mapper–>Tools–>New Terrain

    April 8, 2016 at 11:35 pm #9556
    Anonymous
    Guest

    Thank you, that was very helpful!

    June 17, 2016 at 7:50 pm #9557
    Anonymous
    Guest

    I run into the same issue and creating a new HECRAS project first fixes the problem.
    Thank you a lot!

    April 29, 2019 at 9:49 am #9558
    Anonymous
    Guest

    I tried by creating new project as was directed and it worked.

    January 30, 2020 at 10:32 pm #9559
    Anonymous
    Guest

    I have used your help in 2020, thank you!

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