Would anyone please assist with getting around this error, on Raspberry Pi OS 64bit Buster.
pi@HOM-DEV-BU64:~/Projects/build/kstars $ cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=RelWithDebInfo ~/Projects/kstars
CMake Error at CMakeLists.txt:70 (find_package):
Could not find a configuration file for package "ECM" that is compatible
with requested version "5.68.0".
The following configuration files were considered but not accepted:
-- Configuring incomplete, errors occurred!
See also "/home/pi/Projects/build/kstars/CMakeFiles/CMakeOutput.log".
See also "/home/pi/Projects/build/kstars/CMakeFiles/CMakeError.log".