Cannot build on ArchLinux

[N3RDIUM]

Hey there. I cannot build OpenSkyStacker on ArchLinux (endeavouros). As given in the wiki, I've installed all dependencies from AUR. But, when I run qmake && make && make install, it gives me:

[n3rdium@n3rdium-ms7d22 OpenSkyStacker-Src]$ qmake && make && make install
cd libstacker/ && ( test -e Makefile || /usr/bin/qmake -o Makefile /home/n3rdium/OpenSkyStacker-Src/libstacker/libstacker.pro ) && make -f Makefile 
Project ERROR: opencv development package not found
make: *** [Makefile:50: sub-libstacker-make_first-ordered] Error 3