library cannot find theme.css

[Ujvala]

Hi All,
I am utilizing primefaces 6.0 to develope a bussiness application, Presently my UI is looks extremely premitive I simply need to re-plan it by utilizing administrator Lte templates(1.0.0-RC18) . I have no clue about this, at the point when I carry out the accompanying reliance I got a blunder <dependency> <groupId>com.github.adminfaces</groupId> <artifactId>admin-theme</artifactId> <version>1.0.0-RC18</version> <classifier>dev</classifier> </dependency> <Walmart Canada Survey>

Following is the mistake "Mistake stacking css, can't find "theme.css" asset of "primefaces-administrator" library'
could anybody at any point can assist me with settling my issue and How I can implemebt this format in to my venture.
Much obliged ahead of time.