pikachu@pikachu-PC:~/src/libQtS/cmake-build-debug$ conan install .
WARN: Remotes registry file missing, creating default one in /home/pikachu/.conan/registry.json
Auto detecting your dev setup to initialize the default profile (/home/pikachu/.conan/profiles/default)
Found gcc 7
gcc>=5, using the major as version
Found clang 7.0

************************* WARNING: GCC OLD ABI COMPATIBILITY ***********************
 
Conan detected a GCC version > 5 but has adjusted the 'compiler.libcxx' setting to
'libstdc++' for backwards compatibility.
Your compiler is likely using the new CXX11 ABI by default (libstdc++11).

If you want Conan to use the new ABI, edit the default profile at:

    ~/.conan/profiles/default

adjusting 'compiler.libcxx=libstdc++11'

************************************************************************************



Default settings
        os=Linux
        os_build=Linux
        arch=x86_64
        arch_build=x86_64
        compiler=gcc
        compiler.version=7
        compiler.libcxx=libstdc++
        build_type=Release
*** You can change them in /home/pikachu/.conan/profiles/default ***
*** Or override with -s compiler='other' -s ...s***


ERROR: Conanfile not found at /home/pikachu/src/libQtS/cmake-build-debug/conanfile.py or /home/pikachu/src/libQtS/cmake-build-debug/conanfile.txt
pikachu@pikachu-PC:~/src/libQtS/cmake-build-debug$ 

修改

pikachu@pikachu-PC:~/src/libQtS$ vim ~/.conan/profiles/default 
pikachu@pikachu-PC:~/src/libQtS$