There is no DLL file for that API Set contract. If you are not familiar with API Sets you can read up at Windows API sets. An important concept to understand is covered at Are API sets and dlls the same thing?.
You should carefully read the guidance at Identifying API sets for Win32 APIs. For each Windows API for which your development tools want to link with api-ms-win-core-console-l3-2-0.dll look up the API function documentation. If the table at the bottom of the page does not disclose an API set then the problem may reside in your development tools. For example, the documentation for GetLongPathNameA function requirements shows a dependency on kernel32.dll. No API Set is shown for this function.