[bug] toolchainFile key not found

[comargo]

After introducing tools.cmake.cmaketoolchain.presets:max_schema_version #11655 conan build . stops working.

For schema version=2 toolchainFile is not specified, chacheVariable['CMAKE_TOOLCHAIN_FILE'] used instead

conan/conan/tools/cmake/presets.py

Lines 77 to 80 in 5251fbc

	if not _forced_schema_2(conanfile):
	ret["toolchainFile"] = toolchain_file
	else:
	ret["cacheVariables"]["CMAKE_TOOLCHAIN_FILE"] = toolchain_file

But conan.tools.cmake.CMake.__init__() doesn't take it in account.

conan/conan/tools/cmake/cmake.py

Lines 58 to 60 in 5251fbc

	self._generator = configure_preset["generator"]
	self._toolchain_file = configure_preset["toolchainFile"]
	self._cache_variables = configure_preset["cacheVariables"]

Environment Details (include every applicable attribute)

• Operating System+version: Windows 10
• Compiler+version: Visual Studio 17 2022
• Conan version: 1.51.0
• Python version: 3.9

Steps to reproduce (Include if Applicable)

mkdir ttt
cd ttt
conan new ttt/0.0.1
conan profile new ttt --detect
conan profile update conf.tools.cmake.cmaketoolchain.presets:max_schema_version=3 ttt
conan install . -pr ttt
conan build .

Logs (Executed commands with output) (Include/Attach if Applicable)

PS C:\imperx\git\cyril\ttt> conan install .
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=Visual Studio
compiler.runtime=MDd
compiler.toolset=v140
compiler.version=17
os=Windows
os_build=Windows
[options]
[build_requires]
[env]
[conf]
tools.cmake.cmaketoolchain.presets:max_schema_version=3

conanfile.py (ttt/0.0.1): Installing package
Requirements
Packages

Installing (downloading, building) binaries...
conanfile.py (ttt/0.0.1): Generator txt created conanbuildinfo.txt
conanfile.py (ttt/0.0.1): Calling generate()
conanfile.py (ttt/0.0.1): 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
conanfile.py (ttt/0.0.1): Aggregating env generators
conanfile.py (ttt/0.0.1): Generated conaninfo.txt
conanfile.py (ttt/0.0.1): Generated graphinfo
PS C:\imperx\git\cyril\ttt> conan build .
Using lockfile: 'C:\imperx\git\cyril\ttt/conan.lock'
Using cached profile from lockfile
conanfile.py (ttt/0.0.1): Calling build()
ERROR: conanfile.py (ttt/0.0.1): Error in build() method, line 36
        cmake = CMake(self)
        KeyError: 'toolchainFile'

[Simran-B]

@czoido Looks like this issue should be closed because you merged this PR: #11759

[memsharded]

Thanks for following up @Simran-B, closing the ticket