[bug] CMakeToolchain behaviour is not always the same

Environment Details (include every applicable attribute)

• Operating System+version: Any (Windows 10 / Ubuntu 20.04)
• Compiler+version: MSVC 16 / GCC 9
• Conan version: 1.45.0
• Python version: 3.9.10

When I add GLFW dependency (glfw/3.3.6), CMakeToolchain doesn’t produce the same content each time. Command: conan create . videoviewer/testing -pr:h=default -c tools.cmaketoolchain:generator=Ninja --build=missing

[Working time]

The content of glfw3Targets.cmake is

if(NOT TARGET glfw::glfw)
    add_library(glfw::glfw INTERFACE IMPORTED)
endif()

# Load the debug and release library finders
get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
file(GLOB CONFIG_FILES "${_DIR}/glfw3Target-*.cmake")

foreach(f ${CONFIG_FILES})
    include(${f})
endforeach()

[Not working time]

The content of glfw3Targets.cmake is

# Load the debug and release variables
get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
file(GLOB DATA_FILES "${_DIR}/glfw3-*-data.cmake")

foreach(f ${DATA_FILES})
    include(${f})
endforeach()

# Create the targets for all the components
foreach(_COMPONENT ${glfw_COMPONENT_NAMES} )
    if(NOT TARGET ${_COMPONENT})
        add_library(${_COMPONENT} INTERFACE IMPORTED)
        conan_message(STATUS "Conan: Component target declared '${_COMPONENT}'")
    endif()
endforeach()

if(NOT TARGET glfw)
    add_library(glfw INTERFACE IMPORTED)
    conan_message(STATUS "Conan: Target declared 'glfw'")
endif()
# Load the debug and release library finders
get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
file(GLOB CONFIG_FILES "${_DIR}/glfw3-Target-*.cmake")

foreach(f ${CONFIG_FILES})
    include(${f})
endforeach()

Log is

PS C:\local\gitlab\cc\streaming\videoviewer> conan create . videoviewer/testing -pr:h=default -c tools.cmaketoolchain:generator=Ninja --build=missing
Exporting package recipe
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 4 '.txt' files: CMakeLists.txt, CMakeLists.txt, CMakeLists.txt, CMakeLists.txt
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 6 '.shader' files
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 8 '.h' files
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 1 '.in' file: version.h.in
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 1 '.rc' file: version.rc
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 5 '.cpp' files
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 4 files: .git, .gitignore, SConstruct, UNLICENSE
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 1 '.py' file: gl3w_gen.py
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 1 '.png' file: public-domain-mark.png
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 1 '.rst' file: README.rst
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 1 '.cmake' file: gl3w-config.cmake
videoviewer/0.1.0@videoviewer/testing exports_sources: Copied 3 '.c' files: gl3w.c, glfw_test.c, glut_test.c
videoviewer/0.1.0@videoviewer/testing: The stored package has not changed
videoviewer/0.1.0@videoviewer/testing: Exported revision: d61d3654f90ad4d2b79cffd8dd7c2a39
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=Visual Studio
compiler.cppstd=14
compiler.runtime=MD
compiler.version=16
os=Windows
os_build=Windows
[options]
[build_requires]
[env]
[conf]
tools.cmaketoolchain:generator=Ninja
videoviewer/0.1.0@videoviewer/testing: WARN: Package binary is corrupted, removing: 55dd02feed8e27b6b55bd1f360c729b88141ee92
videoviewer/0.1.0@videoviewer/testing (test package): Installing package
Requirements
    glfw/3.3.6 from 'conancenter' - Cache
    opengl/system from 'conancenter' - Cache
    videoviewer/0.1.0@videoviewer/testing from local cache - Cache
Packages
    glfw/3.3.6:d3cffeefc8c8bcb6be8abdd182cb1b56fc81bacc - Cache
    opengl/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    videoviewer/0.1.0@videoviewer/testing:55dd02feed8e27b6b55bd1f360c729b88141ee92 - Build

Installing (downloading, building) binaries...
opengl/system: Already installed!
glfw/3.3.6: Already installed!
videoviewer/0.1.0@videoviewer/testing: WARN: Build folder is dirty, removing it: C:\Users\ja\.conan\data\videoviewer\0.1.0\videoviewer\testing\build\55dd02feed8e27b6b55bd1f360c729b88141ee92
videoviewer/0.1.0@videoviewer/testing: Copying sources to build folder
videoviewer/0.1.0@videoviewer/testing: Building your package in C:\Users\ja\.conan\data\videoviewer\0.1.0\videoviewer\testing\build\55dd02feed8e27b6b55bd1f360c729b88141ee92
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created glfw3-config-version.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created glfw3-config.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created glfw3Targets.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created glfw3Target-release.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created opengl_system-config-version.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created opengl_system-config.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created opengl_systemTargets.cmake
videoviewer/0.1.0@videoviewer/testing: Generator cmake_find_package_multi created opengl_systemTarget-release.cmake
videoviewer/0.1.0@videoviewer/testing: WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
videoviewer/0.1.0@videoviewer/testing: Generator 'CMakeDeps' calling 'generate()'
videoviewer/0.1.0@videoviewer/testing: Calling generate()
videoviewer/0.1.0@videoviewer/testing: WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
videoviewer/0.1.0@videoviewer/testing: Aggregating env generators
videoviewer/0.1.0@videoviewer/testing: CMake command: cmake -G "Visual Studio 16 2019" -DCMAKE_TOOLCHAIN_FILE="C:/Users/ja/.conan/data/videoviewer/0.1.0/videoviewer/testing/build/55dd02feed8e27b6b55bd1f360c729b88141ee92/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="C:/Users/ja/.conan/data/videoviewer/0.1.0/videoviewer/testing/package/55dd02feed8e27b6b55bd1f360c729b88141ee92" "C:\Users\ja\.conan\data\videoviewer\0.1.0\videoviewer\testing\build\55dd02feed8e27b6b55bd1f360c729b88141ee92"
Using Conan toolchain: C:/Users/ja/.conan/data/videoviewer/0.1.0/videoviewer/testing/build/55dd02feed8e27b6b55bd1f360c729b88141ee92/conan_toolchain.cmake.
-- Conan toolchain: C++ Standard 14 with extensions OFF
-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19042.
-- The C compiler identification is MSVC 19.29.30139.0
-- The CXX compiler identification is MSVC 19.29.30139.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: Target declared 'opengl::opengl'
-- Found PythonInterp: C:/Program Files/WindowsApps/PythonSoftwareFoundation.Python.3.9_3.9.2800.0_x64__qbz5n2kfra8p0/python3.9.exe (found version "3.9.10")
-- Conan: Target declared 'glfw'
-- Library glfw3 found C:/Users/ja/.conan/data/glfw/3.3.6/_/_/package/d3cffeefc8c8bcb6be8abdd182cb1b56fc81bacc/lib/glfw3.lib
-- Found: C:/Users/ja/.conan/data/glfw/3.3.6/_/_/package/d3cffeefc8c8bcb6be8abdd182cb1b56fc81bacc/lib/glfw3.lib
CMake Error at glfw3-config.cmake:80 (set_property):
  set_property could not find TARGET glfw::glfw.  Perhaps it has not yet been
  created.
Call Stack (most recent call first):
  src/CMakeLists.txt:33 (find_package)


CMake Error at glfw3-config.cmake:90 (set_property):
  set_property could not find TARGET glfw::glfw.  Perhaps it has not yet been
  created.
Call Stack (most recent call first):
  src/CMakeLists.txt:33 (find_package)


CMake Error at glfw3-config.cmake:96 (set_property):
  set_property could not find TARGET glfw::glfw.  Perhaps it has not yet been
  created.
Call Stack (most recent call first):
  src/CMakeLists.txt:33 (find_package)


CMake Error at glfw3-config.cmake:102 (set_property):
  set_property could not find TARGET glfw::glfw.  Perhaps it has not yet been
  created.
Call Stack (most recent call first):
  src/CMakeLists.txt:33 (find_package)


-- Configuring incomplete, errors occurred!
See also "C:/Users/ja/.conan/data/videoviewer/0.1.0/videoviewer/testing/build/55dd02feed8e27b6b55bd1f360c729b88141ee92/CMakeFiles/CMakeOutput.log".
videoviewer/0.1.0@videoviewer/testing:
videoviewer/0.1.0@videoviewer/testing: ERROR: Package '55dd02feed8e27b6b55bd1f360c729b88141ee92' build failed
videoviewer/0.1.0@videoviewer/testing: WARN: Build folder C:\Users\ja\.conan\data\videoviewer\0.1.0\videoviewer\testing\build\55dd02feed8e27b6b55bd1f360c729b88141ee92
ERROR: videoviewer/0.1.0@videoviewer/testing: Error in build() method, line 62
        cmake.configure()
        ConanException: Error 1 while executing cmake -G "Visual Studio 16 2019" -DCMAKE_TOOLCHAIN_FILE="C:/Users/ja/.conan/data/videoviewer/0.1.0/videoviewer/testing/build/55dd02feed8e27b6b55bd1f360c729b88141ee92/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="C:/Users/ja/.conan/data/videoviewer/0.1.0/videoviewer/testing/package/55dd02feed8e27b6b55bd1f360c729b88141ee92" "C:\Users\ja\.conan\data\videoviewer\0.1.0\videoviewer\testing\build\55dd02feed8e27b6b55bd1f360c729b88141ee92"

[memsharded]

No problem, it was our fault for that outdated docs! Thanks very much for reporting it, we will fix it asap 😃

[memsharded]

This was fixed like the day after, in https://github.com/conan-io/docs/pull/2398, the live docs don’t show that anymore, so I am closing this. Sorry for the trouble again and thanks!