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: 
Processing files: osgearth-3.6.1-2.fc41.i686
error: File not found: /builddir/build/BUILD/osgearth-3.6.1-build/BUILDROOT/usr/lib/libosgEarth*.so.3.6.1
error: File not found: /builddir/build/BUILD/osgearth-3.6.1-build/BUILDROOT/usr/lib/libosgEarth*.so.158
error: File not found: /builddir/build/BUILD/osgearth-3.6.1-build/BUILDROOT/usr/lib/osgPlugins-3.6.5/osgdb_*.so

Some files haven't been found when the build wants to write the binary rpms.