cant debug with kdevelop

[ssgoogle]

I'v installed kdevelop(version 4.7.0) by this tap ,thank you adymo.And i brew installed gdb too.
When i come to debug (F9),"the current launch configuration does not support the 'debug' mode" shows.
But Execute Launch is OK .Am i missing something through the installation

[nbigaouette]

Not using this, but getting the same error under ArchLinux. See https://bugs.archlinux.org/task/43699

Running kdevelop from the command line shows that it cannot find some plugins/libraries. Maybe your problem can be diagnosed like this.

[attila123]

I had the same problem.
https://bugs.archlinux.org/task/44231 also hinted that the optional dependency kdebase-workspace needs to be installed. Having done that, and after restarting kdevelop, debugging started to work. Did this on Manjaro/XFCE with latest updates, kdevelop 4.7.1.
IMHO the error message kdevelop returns is quite misleading...