Error: The name of Method YYYY doesn't match the name of the element in the lower layer. Ensure that the element’s name is the same as in the lower layer.

During a compile or compare, you may get an error, like this: 


Error:  The name of Method Renamed_insert doesn't match the name of the element in the lower layer. Ensure that the element’s name is the same as in the lower layer.

Check your attention span. Basically the resolution to this problem is in the infolog itself.

the key is in the part "Renamed_*******". The object has been renamed but retained its ID. So chances are, when you've been merging the object, you forgot/chose not to remove the obsolete object with the same ID.

It is not obvious for methods, since you cannot easily see the method's id.

The situation is cured with a cup of coffee and a meticulous compare of the layers. During a comparison of an old MS-provided layer (e.g. old syp vs new syp) you'll stumble upon a completely new added method and a removed method. 

Just remove the conflicting old method and you'll be all set!

And if you're missing such situations often, it's time for a break!