com.atlassian.webresource.api.assembler.PageBuilderService; all of the sudden not recognized

[Sandra Priedīte]

I was working on developing my plugin and there were no issues with 

com.atlassian.webresource.api.assembler.PageBuilderService; 

After adding REST plugin module, even though  

com.atlassian.plugins.rest

 was present, I got error in my REST class. Then I managed to get it work, by importing libraries locally and PagebuilderService turned red all over the place, even though 

om.atlassian.plugins:atlassian-plugins-webresource

is added to POM and all was working ok before.

Any suggestions, what happened?