There is a problem merging the resources.}While merging resources from the files there were: \- Resources with the same name ...

{There is a problem merging the resources.}While merging resources from the files there were:

\- Resources with the same name but with different types, that is, work, material, or cost, or
\- Material resources with the same name but different material labels.

Having multiple resources with the same name in the resource list may lead to unexpected results. It is strongly suggested that you give unique names to all instances of the resources with the following names: 

^1.