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我在部署的时候一直报这个错误，请问怎么解决呢 `[root@localhost WeeklyReport]# docker build -t weeklyreport:0.2 . Sending build context to Docker daemon 48.49MB Step 1/16 : FROM centos:7 ---> 5e35e350aded Step 2/16 : MAINTAINER CodingCrush ---> Using cache ---> 7f48056d2244 Step 3/16 : ENV LANG en_US.UTF-8 ---> Using cache ---> 8071860d93f3 Step 4/16 : RUN ln -s -f /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && curl -fsSL https://setup.ius.io/ | sh && yum update -y && yum install -y python36u python36u-devel python36u-pip && mkdir ~/.pip && echo -e "[global]\nindex-url=http://pypi.douban.com/simple/\ntrusted-host=pypi.douban.com">~/.pip/pip.conf && yum clean all ---> Using cache ---> 5a1e5ab969d7 Step 5/16 : RUN yum install -y supervisor ---> Using cache ---> 7dc748f7eb90 Step 6/16 : RUN mkdir -p /deploy ---> Using cache ---> ce1cf984ec87 Step 7/16 : WORKDIR /deploy ---> Using cache ---> 7e373e00d624 Step 8/16 : COPY requirements.txt /deploy/requirements.txt ---> Using cache ---> 5f616ea0a7bd Step 9/16 : RUN pip3.6 install -r requirements.txt --timeout=120 ---> Running in ba054833bd9e WARNING: Running pip install with root privileges is generally not a good idea. Try `pip3.6 install --user` instead. Collecting flask (from -r requirements.txt (line 1)) Downloading http://pypi.doubanio.com/packages/9b/93/628509b8d5dc749656a9641f4caf13540e2cdec85276964ff8f43bbb1d3b/Flask-1.1.1-py2.py3-none-any.whl (94kB) Collecting flask_bootstrap (from -r requirements.txt (line 2)) Downloading http://pypi.doubanio.com/packages/88/53/958ce7c2aa26280b7fd7f3eecbf13053f1302ee2acb1db58ef32e1c23c2a/Flask-Bootstrap-3.3.7.1.tar.gz (456kB) Collecting flask_login (from -r requirements.txt (line 3)) Downloading http://pypi.doubanio.com/packages/c1/ff/bd9a4d2d81bf0c07d9e53e8cd3d675c56553719bbefd372df69bf1b3c1e4/Flask-Login-0.4.1.tar.gz Collecting flask_script (from -r requirements.txt (line 4)) Downloading http://pypi.doubanio.com/packages/00/a4/cd587b2b19f043b65bf33ceda2f6e4e6cdbd0ce18d01a52b9559781b1da6/Flask-Script-2.0.6.tar.gz (43kB) Collecting flask_wtf (from -r requirements.txt (line 5)) Downloading http://pypi.doubanio.com/packages/60/3a/58c629472d10539ae5167dc7c1fecfa95dd7d0b7864623931e3776438a24/Flask_WTF-0.14.2-py2.py3-none-any.whl Collecting Flask-Mail (from -r requirements.txt (line 6)) Downloading http://pypi.doubanio.com/packages/05/2f/6a545452040c2556559779db87148d2a85e78a26f90326647b51dc5e81e9/Flask-Mail-0.9.1.tar.gz (45kB) Collecting flask-admin (from -r requirements.txt (line 7)) Downloading http://pypi.doubanio.com/packages/03/4e/a92e3c5cee3fce68fda877b437ed4657df3a0168091f6d2cab6c94d932e3/Flask-Admin-1.5.4.tar.gz (1.7MB) Collecting gunicorn (from -r requirements.txt (line 8)) Downloading http://pypi.doubanio.com/packages/69/ca/926f7cd3a2014b16870086b2d0fdc84a9e49473c68a8dff8b57f7c156f43/gunicorn-20.0.4-py2.py3-none-any.whl (77kB) Collecting chartkick (from -r requirements.txt (line 9)) Downloading http://pypi.doubanio.com/packages/cc/ce/623769bffe0a4849e4008b52d17a2d4ef57d42eca96954e8593325670967/chartkick-0.5.0.tar.gz Collecting flask_sqlalchemy (from -r requirements.txt (line 10)) Downloading http://pypi.doubanio.com/packages/1e/65/226d95466c75e34e291a76890ed0e27af2e46ab913002847856f11d4d59d/Flask_SQLAlchemy-2.4.1-py2.py3-none-any.whl Collecting flask_migrate (from -r requirements.txt (line 11)) Downloading http://pypi.doubanio.com/packages/4b/22/d20a105f13c58fe590ef38ac59d5cabc1a917549ea8f90b0ca7b4e84f6be/Flask_Migrate-2.5.2-py2.py3-none-any.whl Collecting flask_babelex (from -r requirements.txt (line 12)) Downloading http://pypi.doubanio.com/packages/80/ad/cc2b0becd98050eed775ca85d6e5fa784547acff69f968183098df8a52b3/Flask-BabelEx-0.9.3.tar.gz (41kB) Collecting pymysql (from -r requirements.txt (line 13)) Downloading http://pypi.doubanio.com/packages/ed/39/15045ae46f2a123019aa968dfcba0396c161c20f855f11dea6796bcaae95/PyMySQL-0.9.3-py2.py3-none-any.whl (47kB) Collecting psycopg2 (from -r requirements.txt (line 14)) Downloading http://pypi.doubanio.com/packages/84/d7/6a93c99b5ba4d4d22daa3928b983cec66df4536ca50b22ce5dcac65e4e71/psycopg2-2.8.4.tar.gz (377kB) Complete output from command python setup.py egg_info: running egg_info creating pip-egg-info/psycopg2.egg-info writing pip-egg-info/psycopg2.egg-info/PKG-INFO writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt' Error: pg_config executable not found. pg_config is required to build psycopg2 from source. Please add the directory containing pg_config to the $PATH or specify the full executable path with the option: python setup.py build_ext --pg-config /path/to/pg_config build ... or with the pg_config option in 'setup.cfg'. If you prefer to avoid building psycopg2 from source, please install the PyPI 'psycopg2-binary' package instead. For further information please check the 'doc/src/install.rst' file (also at <http://initd.org/psycopg/docs/install.html>). ---------------------------------------- Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-sg4cklnw/psycopg2/ The command '/bin/sh -c pip3.6 install -r requirements.txt --timeout=120' returned a non-zero code: 1 `