I have a simulation, in which the case file was created in Ansys 19.1. When I try to load it in v. 19.2 (the version I have), I get this warning when the library is loaded and auto-compiled. 

Online comments tell me that a possible reason for this is version mismatch and that I should delete the old library and compile the udf in the new version of Fluent. I have tried doing this a couple times and still receive the same error messages.

The compiler I am using is Visual Studio 2017 with the 64-bit compiler.

Best,

Claire