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Thank you for your time.

Currently I download the Kdenlive source code from Git and
I'm trying to build using Craft.

I get a compile error while building with Craft and can't compile to the end.
My PC is windows,
I am using Visual Studio 2019 as the compiler.

・ URL of Kdenlive's open source download destination
https://github.com/KDE/kdenlive

・ URL of the download destination of Craft
https://github.com/KDE/craft

・ Refer to the following URL.
https://community.kde.org/Guidelines_an ... ce/Windows
https://community.kde.org/Kdenlive/Deve ... ndowsBuild

The build procedure using Craft is as follows.
<Procedure>
1) Start PowerShell and enter the following command
C: \ CraftRoot \ craft \ craftenv.ps1
・ The following screen appears
ーーーーーーーーーーーーーーーーーーーーーー
Craft : C:\CraftRoot
Version : master
ABI : windows-msvc2019_64-cl
Download directory : C:\CraftRoot\download
ーーーーーーーーーーーーーーーーーーーーーー

2) Build: When the following command is input
python C: \ CraftRoot \ craft \ bin \ craft.py kdenlive
Or, when inputting the following command
craft kdenlive

Then the following error occurred.
--- <Error details> -------------
- Checking for module 'mlt++-7'
-- No package 'mlt++-7' found
CMake Error at C:/CraftRoot/dev-utils/cmake-base/share/cmake-3.19/Modules/FindPackageHandleStandardArgs.cmake:218 (message):
Could NOT find MLT (missing: MLT_LIBRARIES MLTPP_LIBRARIES MLT_INCLUDE_DIR
MLTPP_INCLUDE_DIR) (Required is at least version "7.0.0")
Call Stack (most recent call first):
C:/CraftRoot/dev-utils/cmake-base/share/cmake-3.19/Modules/FindPackageHandleStandardArgs.cmake:582 (_FPHSA_FAILURE_MESSAGE)
cmake/modules/FindMLT.cmake:65 (find_package_handle_standard_args)
CMakeLists.txt:61 (find_package)

-- Configuring incomplete, errors occurred!
See also "C:/CraftRoot/build/_/3377f5a/build/CMakeFiles/CMakeOutput.log".
See also "C:/CraftRoot/build/_/3377f5a/build/CMakeFiles/CMakeError.log".
Action: compile for kde/kdemultimedia/kdenlive:21.08.1 FAILED
*** Craft all failed: kde/kdemultimedia/kdenlive after 12 seconds ***
fatal error: package kde/kdemultimedia/kdenlive all failed
Craft stopped with out completing ['kde/kdemultimedia/kdenlive']
--------------------------------------

Even if I read the log, I am in trouble because I do not understand the cause.
I'm sorry I'm ignorant, but I'd appreciate it if you could tell me the solution.
Thank you.

you can join the Telegram developer channel to request help to Vincent Pinon about that.

craft doesn't run just as the python script.
you must source the powershell environment and then call craft commands from here.