Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
Run-time dependency libadwaita-1 found: NO 

src/meson.build:23:2: ERROR: Dependency lookup for libadwaita-1 with method 'pkgconfig' failed: Invalid version, need 'libadwaita-1' ['>= 1.7'] found '1.6.6'.
This is the main error.