Failed to find style 'elasticDrawerStyle' in current theme

[Yavar007]

Hi,
when i want to add this library to my projects i get these errors:

--Failed to find style 'elasticDrawerStyle' in current theme
--Missing styles. Is the correct theme chosen for this layout? Use the Theme combo box above the layout to choose a different layout, or fix the theme style references.
--The graphics preview in the layout editor may not be accurate:
- Paint Flags Draw Filters are not supported.

[mxn21]

check flowingdrawer-core > res > values > attrs.xml
need to be added in attrs.xml

[FedGk]

这个问题应该不影响开发的吧？因为我在看你提供的demo时。ide一样报这个错误。而且我尝试了很多方法，始终无法去掉这个报错。