Can you please tell us a bit more about the file you are working with and what is in the Arnold log file? If you can share these that will help other troubleshoot.
What operating system? What version Houdini? Indie? Apprentice? What version of HtoA.
If you're on Windows, you could be missing the Visual Studio 2012 redistributable:
https://www.microsoft.com/en-us/download/details.aspx?id=30679
win10 system, houdini16.0.705 version, arnold is 2.1.4 version. I try your runtime library. Thanks for Stephen Blair. This problem has bothered me for a long time. Delay your time, thank you very much.