无法安装rpi_ws281x"错误:命令'gcc'失败,退出状态为1"

Question

我正在尝试在我的Raspberry Pi A +上安装Neopixels库.起初我做了这个,并试图运行代码,但它不起作用.我再次重新安装Raspbian并仔细安装了标头和库我得到了这个:

> Downloading https://pypi.python.org/…/s…/s/setuptools/setuptools-5.7.zip
Extracting in /tmp/tmpkD2xEW
Now working in /tmp/tmpkD2xEW/setuptools-5.7
Building a Setuptools egg in /home/pi/rpi_ws281x/python
/home/pi/rpi_ws281x/python/setuptools-5.7-py2.7.egg
running install
running bdist_egg
running egg_info
creating rpi_ws281x.egg-info
writing rpi_ws281x.egg-info/PKG-INFO
writing top-level names to rpi_ws281x.egg-info/top_level.txt
writing dependency_links to rpi_ws281x.egg-info/dependency_links.txt
writing manifest file 'rpi_ws281x.egg-info/SOURCES.txt'
reading manifest file 'rpi_ws281x.egg-info/SOURCES.txt'
writing manifest file 'rpi_ws281x.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-armv6l/egg
running install_lib
running build_py
creating build
creating build/lib.linux-armv6l-2.7
copying neopixel.py -> build/lib.linux-armv6l-2.7
running build_ext
building '_rpi_ws281x' extension
swigging rpi_ws281x.i to rpi_ws281x_wrap.c
swig -python -o rpi_ws281x_wrap.c rpi_ws281x.i
creating build/temp.linux-armv6l-2.7
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c rpi_ws281x_wrap.c -o build/temp.linux-armv6l-2.7/rpi_ws281x_wrap.o
rpi_ws281x_wrap.c: In function ‘init_rpi_ws281x’:
rpi_ws281x_wrap.c:4638:21: warning: variable ‘md’ set but not used [-Wunused-but-set-variable]
gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-z,relro build/temp.linux-armv6l-2.7/rpi_ws281x_wrap.o -L../. -lws2811 -o build/lib.linux-armv6l-2.7/_rpi_ws281x.so
/usr/bin/ld: cannot find -lws2811
collect2: ld returned 1 exit status
error: command 'gcc' failed with exit status 1

我看到了一些关于这个问题的问题:"安装libevent-dev"它没有用.

Answer 1

刚刚遇到这个问题,即使这个问题已经过去了,我还是认为我已经把这个答案放在了那些偶然发现这个问题的人身上.机会是,如果你在这里,那么你正在做这个.该问题的实际解决方案是您忘记在rpi_ws281x目录中运行命令"scons",该目录将下载您需要的更多依赖项,包括OP所引用的缺少的ws2811库.不小心自己跳过了那一步:p.