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conan install pkgconf/1.7.4@ --profile=/home/conan/w/BuildSingleReference/10074/03853f50-e695-4f97-b594-b74b403dccf2/profile.txt --build=pkgconf
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=8
os=Linux
os_build=Linux
[options]
pkgconf:shared=False
[build_requires]
[env]

pkgconf/1.7.4: Forced build from source
Installing package: pkgconf/1.7.4
Requirements
    pkgconf/1.7.4 from local cache - Cache
Packages
    pkgconf/1.7.4:761432f3453a17c960259b5b2605153e3bcffd7d - Build
Build requirements
    meson/0.57.2 from 'conan-center' - Cache
    ninja/1.10.2 from 'conan-center' - Cache
Build requirements packages
    meson/0.57.2:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    ninja/1.10.2:cc9f9b2b9f92fc82888026414560bf79d8c3a052 - Cache

Installing (downloading, building) binaries...
ninja/1.10.2: 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
meson/0.57.2: Already installed!
meson/0.57.2: Appending PATH environment variable: /home/conan/w/BuildSingleReference/.conan/data/meson/0.57.2/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/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
pkgconf/1.7.4: Applying build-requirement: meson/0.57.2
pkgconf/1.7.4: Applying build-requirement: ninja/1.10.2
pkgconf/1.7.4: Copying sources to build folder
pkgconf/1.7.4: Building your package in /home/conan/w/BuildSingleReference/.conan/data/pkgconf/1.7.4/_/_/build/761432f3453a17c960259b5b2605153e3bcffd7d
pkgconf/1.7.4: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK. 'fPIC' option found and apparently well managed
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
pkgconf/1.7.4: Calling build()
pkgconf/1.7.4: 
ninja/1.10.2: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/ninja/1.10.2/_/_/package/cc9f9b2b9f92fc82888026414560bf79d8c3a052/lib
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component ninja::ninja libdir "lib" does not contain any library
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component ninja::ninja libdir "lib" does not contain any declared library
meson/0.57.2: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/meson/0.57.2/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component meson::meson libdir "lib" does not contain any declared library
pkgconf/1.7.4: WARN: Build folder is dirty, removing it: /home/conan/w/BuildSingleReference/.conan/data/pkgconf/1.7.4/_/_/build/761432f3453a17c960259b5b2605153e3bcffd7d
pkgconf/1.7.4: ERROR: Package '761432f3453a17c960259b5b2605153e3bcffd7d' build failed
pkgconf/1.7.4: WARN: Build folder /home/conan/w/BuildSingleReference/.conan/data/pkgconf/1.7.4/_/_/build/761432f3453a17c960259b5b2605153e3bcffd7d
ERROR: pkgconf/1.7.4: Error in build() method, line 76
	self._patch_sources()
while calling '_patch_sources', line 66
	for patch in self.conan_data["patches"][self.version]:
	KeyError: 'patches'