R027 “Missing beans when creating Spring context” should include more logging information. As it is, it doesn’t let you know what bean is missing and where, only that there is one. It should print out the missing bean or some semblance of a stack trace for determining which bean is not properly annotated or listed in the Spring-Bean XML.
Thank you for posting - in recent versions this information should be present, as you note it is very useful for moving past this.
Can you please tell me what version of Diffblue Cover you are using?
You can find this by going into the IntelliJ Settings > Plugins > Diffblue - you should see a version, below is a picture with the red box highlighting the version.
Kind regards,
Jane @ Diffblue