Heroku找不到libssh2.h

Question

我正在尝试将基本的Flask应用程序部署到Heroku。

之前我已经完成了一个工作，但是现在我已经添加了SSH，它将不会部署。

这是我的sqr'：

requirements.txt

heroku构建日志是：

Flask==0.12.2
Gunicorn==19.7.1
parallel-ssh==1.2.0

似乎安装了很多其他依赖项，这很好。但它以某种方式找不到-----> Python app detected -----> Installing requirements with pip Collecting parallel-ssh==1.2.0 (from -r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading parallel_ssh-1.2.0-cp36-cp36m-manylinux1_x86_64.whl (1.6MB) Collecting ssh2-python>=0.6.0 (from parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading ssh2-python-0.7.0.post2.tar.gz (438kB) Collecting paramiko<2.2 (from parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading paramiko-2.1.4-py2.py3-none-any.whl (173kB) Collecting gevent>=1.1 (from parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading gevent-1.2.2-cp36-cp36m-manylinux1_x86_64.whl (1.7MB) Collecting pyasn1>=0.1.7 (from paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading pyasn1-0.4.2-py2.py3-none-any.whl (71kB) Collecting cryptography>=1.1 (from paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading cryptography-2.1.4-cp36-cp36m-manylinux1_x86_64.whl (2.2MB) Collecting greenlet>=0.4.10 (from gevent>=1.1->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading greenlet-0.4.12-cp36-cp36m-manylinux1_x86_64.whl (42kB) Collecting six>=1.4.1 (from cryptography>=1.1->paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading six-1.11.0-py2.py3-none-any.whl Collecting asn1crypto>=0.21.0 (from cryptography>=1.1->paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading asn1crypto-0.24.0-py2.py3-none-any.whl (101kB) Collecting idna>=2.1 (from cryptography>=1.1->paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading idna-2.6-py2.py3-none-any.whl (56kB) Collecting cffi>=1.7; platform_python_implementation != "PyPy" (from cryptography>=1.1->paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading cffi-1.11.2-cp36-cp36m-manylinux1_x86_64.whl (419kB) Collecting pycparser (from cffi>=1.7; platform_python_implementation != "PyPy"->cryptography>=1.1->paramiko<2.2->parallel-ssh==1.2.0->-r /tmp/build_42797fa48b085347364495c1df641f74/SnelleJelle-divulge-c28ba875636d44db493b3f331420150355401c3c/requirements.txt (line 3)) Downloading pycparser-2.18.tar.gz (245kB) Installing collected packages: ssh2-python, pyasn1, six, asn1crypto, idna, pycparser, cffi, cryptography, paramiko, greenlet, gevent, parallel-ssh Running setup.py install for ssh2-python: started Running setup.py install for ssh2-python: finished with status 'error' Complete output from command /app/.heroku/python/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-xqi26x3e/ssh2-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-yn7ewtm4-record/install-record.txt --single-version-externally-managed --compile: running install running build running build_py creating build creating build/lib.linux-x86_64-3.6 creating build/lib.linux-x86_64-3.6/ssh2 copying ssh2/_version.py -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/__init__.py -> build/lib.linux-x86_64-3.6/ssh2 running egg_info writing ssh2_python.egg-info/PKG-INFO writing dependency_links to ssh2_python.egg-info/dependency_links.txt writing top-level names to ssh2_python.egg-info/top_level.txt reading manifest file 'ssh2_python.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'ssh2_python.egg-info/SOURCES.txt' copying ssh2/agent.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/channel.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/error_codes.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/exceptions.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/fileinfo.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/listener.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/pkey.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/publickey.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/session.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/sftp.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/sftp_handle.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/statinfo.c -> build/lib.linux-x86_64-3.6/ssh2 copying ssh2/utils.c -> build/lib.linux-x86_64-3.6/ssh2 running build_ext building 'ssh2.pkey' extension creating build/temp.linux-x86_64-3.6 creating build/temp.linux-x86_64-3.6/ssh2 gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -Ilibssh2/include -I/app/.heroku/python/include/python3.6m -c ssh2/pkey.c -o build/temp.linux-x86_64-3.6/ssh2/pkey.o -O3 ssh2/pkey.c:527:21: fatal error: libssh2.h: No such file or directory compilation terminated. error: command 'gcc' failed with exit status 1 ---------------------------------------- Command "/app/.heroku/python/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-xqi26x3e/ssh2-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-yn7ewtm4-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-xqi26x3e/ssh2-python/ ! Push rejected, failed to compile Python app. ! Push failed 。

我该怎么办？