Qt 6.5.0 install issue with Conan 1.60.1 on Windows 10

[silicode17]

I am having the following issue when trying to do a conan install of Qt 6.5.0.
This issue also happens with Qt 6.4.*, but not with Qt 6.3.1 for some reason:

**********************************************************************
** Visual Studio 2022 Developer Command Prompt v17.6.4
** Copyright (c) 2022 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
-- Using vcpkg from C:\Program Files\Microsoft Visual Studio\2022\Community\VC\vcpkg
-- CMAKE_TOOLCHAIN_FILE is: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/vcpkg/scripts/buildsystems/vcpkg.cmake
-- VCPKG_CHAINLOAD_TOOLCHAIN_FILE is: C:/.conan/feba50/1/build/generators/conan_toolchain.cmake
-- Using Conan toolchain: C:/.conan/feba50/1/build/generators/conan_toolchain.cmake
-- Conan toolchain: Setting BUILD_SHARED_LIBS = ON
-- The CXX compiler identification is MSVC 19.36.32535.0
-- The C compiler identification is MSVC 19.36.32535.0
-- The ASM compiler identification is MSVC
-- Found assembler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.36.32532/bin/Hostx64/x64/cl.exe
-- Detecting CXX compiler ABI info
CMake Error at C:/.conan/feba50/1/build/generators/conan_toolchain.cmake:30 (message):
  The CMake policy CMP0091 must be NEW, but is ''
Call Stack (most recent call first):
  C:/Program Files/Microsoft Visual Studio/2022/Community/VC/vcpkg/scripts/buildsystems/vcpkg.cmake:208 (include)
  C:/.conan/feba50/1/build/CMakeFiles/3.25.3/CMakeSystem.cmake:6 (include)
  C:/.conan/feba50/1/build/CMakeFiles/CMakeScratch/TryCompile-yvnavs/CMakeLists.txt:6 (project)


CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error at C:/Users/joe/.conan/data/cmake/3.25.3/_/_/package/ca33edce272a279b24f87dc0d4cf5bbdcffbc187/share/cmake-3.25/Modules/CMakeDetermineCompilerABI.cmake:57 (try_compile):
  Failed to configure test project build system.
Call Stack (most recent call first):
  C:/Users/joe/.conan/data/cmake/3.25.3/_/_/package/ca33edce272a279b24f87dc0d4cf5bbdcffbc187/share/cmake-3.25/Modules/CMakeTestCXXCompiler.cmake:26 (CMAKE_DETERMINE_COMPILER_ABI)
  CMakeLists.txt:17 (project)


-- Configuring incomplete, errors occurred!
See also "C:/.conan/feba50/1/build/CMakeFiles/CMakeOutput.log".
See also "C:/.conan/feba50/1/build/CMakeFiles/CMakeError.log".
qt/6.5.0:
qt/6.5.0: ERROR: Package '53de4d8442b43e5beb4afdecca6a06399110f269' build failed
qt/6.5.0: WARN: Build folder C:\.conan\feba50\1\build
ERROR: qt/6.5.0: Error in build() method, line 733
        cmake.configure()
        ConanException: Error 1 while executing cmake -G "Ninja" -DCMAKE_TOOLCHAIN_FILE="C:/.conan/feba50/1/build/generators/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="C:/.conan/1faa80/1" -DCMAKE_TRY_COMPILE_CONFIGURATION="Release" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "C:\.conan\eeefcc\1\src"

The command I am using is:

conan install .. --build=missing

Here is my conan.txt file:

[requires]
qt/6.5.0

[generators]
cmake_paths
cmake_find_package

[options]
qt:shared=True
qt:qtmultimedia=True
qt:disabled_features=gstreamer

[imports]
bin, *.dll -> ./bin
lib, *.dylib* -> ./bin
plugins, platforms/* -> ./bin
plugins, mediaservice/* -> ./bin

[evgeniy-russkih]

Problem appears when VS 2022 is selected. Switching to VS 2019 might help

[JakobWeissOP]

Did anyone have any further insights on this?

I'm seeing the same issue here when trying to locally compile Qt 6.5.2. Originally I had the exact same versions as the OP (VS 17.4.6 MSVC 19.36.32535.0, cmake 3.25.3).
I also tried updating MSVC to the latest version (VS 17.7.3) and also attempted to modify the recipe to update the required cmake to use an updated one, but I still get the same errors:

**********************************************************************
** Visual Studio 2022 Developer Command Prompt v17.7.3
** Copyright (c) 2022 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
-- Using vcpkg from C:\Program Files\Microsoft Visual Studio\2022\Professional\VC\vcpkg
-- Using vcpkg triplet x64-windows
-- CMAKE_TOOLCHAIN_FILE is: C:/Program Files/Microsoft Visual Studio/2022/Professional/VC/vcpkg/scripts/buildsystems/vcpkg.cmake
-- VCPKG_CHAINLOAD_TOOLCHAIN_FILE is: C:/.conan/0e1332/1/build/generators/conan_toolchain.cmake
-- Using Conan toolchain: C:/.conan/0e1332/1/build/generators/conan_toolchain.cmake
-- Conan toolchain: Setting BUILD_SHARED_LIBS = ON
-- The CXX compiler identification is MSVC 19.37.32822.0
-- The C compiler identification is MSVC 19.37.32822.0
-- The ASM compiler identification is MSVC
-- Found assembler: C:/Program Files/Microsoft Visual Studio/2022/Professional/VC/Tools/MSVC/14.37.32822/bin/Hostx64/x64/cl.exe
-- Detecting CXX compiler ABI info
CMake Error at C:/.conan/0e1332/1/build/generators/conan_toolchain.cmake:30 (message):
  The CMake policy CMP0091 must be NEW, but is ''
Call Stack (most recent call first):
  C:/Program Files/Microsoft Visual Studio/2022/Professional/VC/vcpkg/scripts/buildsystems/vcpkg.cmake:209 (include)
  C:/.conan/0e1332/1/build/CMakeFiles/3.27.4/CMakeSystem.cmake:6 (include)
  C:/.conan/0e1332/1/build/CMakeFiles/CMakeScratch/TryCompile-41z8n1/CMakeLists.txt:6 (project)


CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error at C:/Users/JakobWeiss/.conan/data/cmake/3.27.4/_/_/package/ca33edce272a279b24f87dc0d4cf5bbdcffbc187/share/cmake-3.27/Modules/CMakeDetermineCompilerABI.cmake:57 (try_compile):
  Failed to configure test project build system.
Call Stack (most recent call first):
  C:/Users/JakobWeiss/.conan/data/cmake/3.27.4/_/_/package/ca33edce272a279b24f87dc0d4cf5bbdcffbc187/share/cmake-3.27/Modules/CMakeTestCXXCompiler.cmake:26 (CMAKE_DETERMINE_COMPILER_ABI)
  CMakeLists.txt:17 (project)

[paulharris]

Hey peoples, I have a solution for you. I hit this myself on a new Windows computer.
The clue is this line in your log:
-- Using vcpkg from C:\Program Files\Microsoft Visual Studio\2022\Community\VC\vcpkg

QT's CMake files feature a "helpful" vcpkg autodetection routine that injects vcpkg's toolchain file into the build.

I uninstalled vcpkg and was able to build without further problems.

[ericLemanissier]

This is fixed by #20186

[paulharris]

@VicKov1975 is it working for you now?