Issue
After upgrade to 5.5, K2 PDF Converter Service does not start.
Error Code
Description: A .NET Core application failed. Application: SourceCode.PdfConverter.Api.exe Path: C:Program FilesK2… Message: _ To run this application, you will need to install a newer version of .NET Core.

Resolution
Download and install .NET Core Hosting and Runtime Bundle 3.1.9 to resolved the issue.