CMake Error at CMakeLists.txt:232 (message): Your C++ compiler does NOT fully support C++17.

[biel-wangdf3]

datalab@***:~/.vim/bundle/YouCompleteMe$ python3 install.py --all
Searching Python 3.6 libraries...
Found Python library: /anaconda/envs/azureml_py36/lib/libpython3.6m.so
Found Python headers folder: /anaconda/envs/azureml_py36/include/python3.6m
-- The C compiler identification is GNU 7.3.0
-- The CXX compiler identification is GNU 7.3.0
-- Check for working C compiler: /anaconda/envs/azureml_py36/bin/x86_64-conda_cos6-linux-gnu-cc
-- Check for working C compiler: /anaconda/envs/azureml_py36/bin/x86_64-conda_cos6-linux-gnu-cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /anaconda/envs/azureml_py36/bin/x86_64-conda_cos6-linux-gnu-c++
-- Check for working CXX compiler: /anaconda/envs/azureml_py36/bin/x86_64-conda_cos6-linux-gnu-c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:232 (message):
Your C++ compiler does NOT fully support C++17.

-- Configuring incomplete, errors occurred!
See also "/tmp/ycm_build_2mq82s33/CMakeFiles/CMakeOutput.log".
ERROR: the build failed.

NOTE: it is highly unlikely that this is a bug but rather
that this is a problem with the configuration of your system
or a missing dependency. Please carefully read CONTRIBUTING.md
and if you're sure that it is a bug, please raise an issue on the
issue tracker, including the entire output of this script
and the invocation line used to run it.

-------gcc environment
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

---------try the follow commands didn't solve :
sudo apt-get install g++-8
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 700 --slave /usr/bin/g++ g++ /usr/bin/g++-7
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 800 --slave /usr/bin/g++ g++ /usr/bin/g++-8

---

help me!
How to solve it?

[puremourning]

-- Check for working CXX compiler: /anaconda/envs/azureml_py36/bin/x86_64-conda_cos6-linux-gnu-c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:232 (message):
Your C++ compiler does NOT fully support C++17.

Disable anaconda.

[peakfa]

Searching Python 3.6 libraries...
Found Python library: /usr/lib/python3.6/config-3.6m-x86_64-linux-gnu/libpython3.6.so
Found Python headers folder: /usr/include/python3.6m
-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is GNU 7.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:220 (message):
Your C++ compiler does NOT fully support C++17.

-- Configuring incomplete, errors occurred!
See also "/tmp/ycm_build__7q7mgnt/CMakeFiles/CMakeOutput.log".
ERROR: the build failed.

NOTE: it is highly unlikely that this is a bug but rather
that this is a problem with the configuration of your system
or a missing dependency. Please carefully read CONTRIBUTING.md
and if you're sure that it is a bug, please raise an issue on the
issue tracker, including the entire output of this script
and the invocation line used to run it.

help me!
How to solve it?

hi I also met how to solve it？