I tried to download "ECMConfig.cmake" from repository, but terminal gives me an error: "question's title + The following configuration files were considered but not accepted: ECMConfig.cmake : version is unknowed. I tried to search on Google, but got nothing. I wanted to compile from source "kde frameworks" using this command:

cmake .. -DCMAKE_INSTALL_PREFIX=/home/john/QtProjects/KDEStuff/frameworkintegration/build/ 
         -DCMAKE_BUILD_TYPE=debugfull -DCMAKE_PREFIX_PATH=/home/john/Downloads/

"/home/john/Downloads/" - where my *.cmake is.

  • Just in case remember it could also happen when not having read access on /usr/share. Jun 3, 2022 at 0:47

2 Answers 2


Try to clone, compile and install the extra-cmake-modules KDE project. 

git clone https://invent.kde.org/frameworks/extra-cmake-modules.git 
cd extra-cmake-modules
mkdir build && cd build    
cmake ..
make && sudo make install

In my case I simply had to install the extra-cmake-modules package.

sudo pacman -S extra-cmake-modules
  • 3
    This is the best solution! Jun 4, 2018 at 21:36
  • Worked for me with Fedora 30.
    – erik
    Jan 2, 2020 at 15:24
  • Or sudo apt-get install extra-cmake-modules
    – dmatej
    May 10, 2022 at 11:45

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