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conan install rmlui/3.3@ --profile=C:\J\w\BuildSingleReference@8/9110/cdf8b538-bec8-44b5-8f21-41ffe4af7b18/profile.txt --build=rmlui
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=Visual Studio
compiler.runtime=MTd
compiler.version=16
os=Windows
os_build=Windows
[options]
rmlui:shared=False
[build_requires]
[env]

rmlui/3.3: Forced build from source
Installing package: rmlui/3.3
Requirements
    bzip2/1.0.8 from 'conan-center' - Cache
    freetype/2.10.1 from 'conan-center' - Cache
    libpng/1.6.37 from 'conan-center' - Cache
    rmlui/3.3 from local cache - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    bzip2/1.0.8:73c22595362cd7ddee053c6b60c2c6360d1a8f7e - Cache
    freetype/2.10.1:f8f1ae53c44f4ab96ca548238f1a22a9abdd89d4 - Cache
    libpng/1.6.37:00ab2dcc4f90daf0b26389673f0aacc85e31be13 - Cache
    rmlui/3.3:fcc593844047bc490a882903ea2bef61094e56e9 - Build
    zlib/1.2.11:b2b69efcc79a149e0bc765fb12ba0278d52fc260 - Cache

Installing (downloading, building) binaries...
bzip2/1.0.8: Already installed!
bzip2/1.0.8: Appending PATH environment variable: C:\J\w\BuildSingleReference@8\.conan\data\bzip2\1.0.8\_\_\package\73c22595362cd7ddee053c6b60c2c6360d1a8f7e\bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
zlib/1.2.11: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libpng/1.6.37: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
freetype/2.10.1: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
rmlui/3.3: Copying sources to build folder
rmlui/3.3: Building your package in C:\J\w\BuildSingleReference@8\.conan\data\rmlui\3.3\_\_\build\fcc593844047bc490a882903ea2bef61094e56e9
rmlui/3.3: Generator cmake created conanbuildinfo.cmake
rmlui/3.3: Generator cmake_find_package created FindFreetype.cmake
rmlui/3.3: Generator cmake_find_package created FindPNG.cmake
rmlui/3.3: Generator cmake_find_package created FindBZip2.cmake
rmlui/3.3: Generator cmake_find_package created FindZLIB.cmake
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
rmlui/3.3: Calling build()
rmlui/3.3: 
rmlui/3.3: WARN: Build folder is dirty, removing it: C:\J\w\BuildSingleReference@8\.conan\data\rmlui\3.3\_\_\build\fcc593844047bc490a882903ea2bef61094e56e9
rmlui/3.3: ERROR: Package 'fcc593844047bc490a882903ea2bef61094e56e9' build failed
rmlui/3.3: WARN: Build folder C:\J\w\BuildSingleReference@8\.conan\data\rmlui\3.3\_\_\build\fcc593844047bc490a882903ea2bef61094e56e9
ERROR: rmlui/3.3: Error in build() method, line 108
	self._configure_cmake().build()
while calling '_configure_cmake', line 68
	cmake_version = tools.Version(cmake_version_output.getvalue().split('\n', 1)[0].rsplit(' ', 1)[-1])
	ConanException: Invalid version ''