Please check out the installer. We're happy to hear some feedback of you guys!
19 karma · joined August 25, 2016
Get kdevplatform from: git://anongit.kde.org/kdevplatform
Install kdevplatform, kdevelop, kdev-rust, etc. into the same install prefix (-DCMAKE_INSTALL_PREFIX=/foo) and you should be fine.
Also have a look at: https://community.kde.org/KDevelop/HowToCompile_v5#3._Run_KD... for setting up the env before running KDevelop.