Hey Folks, we were having issues migrating Case Lightning Record Pages (LRP) with a change set.  

Error: Invalid component[force:relatedListSingleContainer].

This error description was useless as we are using many RL-Singles in our LRPs.  After some searching, I found that there is a known issue about this.  After many attempts at cloning, removing, uploading, validating multiple change sets, we found that Case Comments Related List - Single happened to be our culprit.  

Fix: We kept the entire LRP intact but only changed the Case Comments related list to Activity History for the change set.  Once it was moved to the next environment, we changed the RL-Single back to case comments.  Much easier than rebuilding the LRP in each new sandbox/Prod environment.

@Joshua Maples @Ingo Fochler #Lightning #Error Message #Change Sets #Lightning Record Pages #Cases #Service Cloud 

Invalid component [force:relatedListSingleContainer]