Ubuntu 24.04.1 LTS x86_64 meson.build:38:17: ERROR: Neither a subproject directory nor a wlroots.wrap file was found

[nawip]

how to fix this error?

/Experiments/cage$ meson setup build
The Meson build system
Version: 1.3.2
Source dir: /Experiments/cage
Build dir: /Experiments/cage/build
Build type: native build
Project name: cage
Project version: 0.2.0
C compiler for the host machine: ccache cc (gcc 13.2.0 "cc (Ubuntu 13.2.0-23ubuntu4) 13.2.0")
C linker for the host machine: cc ld.bfd 2.42
Host machine cpu family: x86_64
Host machine cpu: x86_64
Found pkg-config: YES (/usr/bin/pkg-config) 1.8.1
Found CMake: /usr/bin/cmake (3.28.3)
Run-time dependency wlroots-0.18 found: NO (tried pkgconfig and cmake)
Looking for a fallback subproject for the dependency wlroots-0.18

meson.build:38:17: ERROR: Neither a subproject directory nor a wlroots.wrap file was found.

A full log can be found at /Experiments/cage/build/meson-logs/meson-log.txt

[joggee-fr]

Either find a dev package providing wlroots 0.18 or take a look at Meson subprojects to clone the wlroots repository at the right location.

[ZirixCZ]

You can fix this by creating a subprojects directory in the root directory of cage. Clone wlroots into this directory. It should look like this (cage-root)/subprojects/wlroots/(wlroots-root) There, in the wlroots-root, checkout the needed version (they setup branches for each main version, so git checkout 0.18 will do the job). Then run meson build in the wlroots subprojects directory. After this being successful you can go back to the cage-root directory and run command again.

[joggee-fr]

Then run meson build in the wlroots subprojects directory. After this being successful you can go back to the cage-root directory and run command again.

No need to run meson build directly in the wlroots subproject. It will be done by the main cage project once subproject found.