无法加载共享其存在的库搜索路径

问题描述：

$ nft 
nft: error while loading shared libraries: libnftnl.so.4: cannot open shared object file: No such file or directory

我建libmnl，libnftnl，nftables来源由捉迷藏AUTOGEN .SH然后用配置：

--prefix=/usr/local

这些都是在/ usr /本地/ 11b的内容：

$ ls -l /usr/local/lib/ | grep libnftnl 
-rwxr-xr-x 1 root root  961 Mar 2 20:16 libnftnl.la 
lrwxrwxrwx 1 root root  17 Mar 2 20:16 libnftnl.so -> libnftnl.so.4.0.0 
lrwxrwxrwx 1 root root  17 Mar 2 20:16 libnftnl.so.4 -> libnftnl.so.4.0.0 
-rwxr-xr-x 1 root root 913147 Mar 2 20:16 libnftnl.so.4.0.0

更多信息：

$ ldd $(which nft) 
    linux-vdso.so.1 => (0x00007ffd7afbf000) 
    libmnl.so.0 => /usr/lib/x86_64-linux-gnu/libmnl.so.0 (0x00007fc60181f000) 
    libnftnl.so.4 => not found 
    libreadline.so.6 => /lib/x86_64-linux-gnu/libreadline.so.6 (0x00007fc6015d8000) 
    libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10 (0x00007fc601364000) 
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc600f9f000) 
    libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007fc600d75000) 
    /lib64/ld-linux-x86-64.so.2 (0x000055a0bd82d000)

和我的ld.so.conf中的内容是：

$ cat /etc/ld.so.conf 
/usr/lib/x86_64-linux-gnu/libfakeroot 
# libc default configuration 
/usr/local/lib 
/usr/local/lib/ 
# Multiarch support 
/lib/x86_64-linux-gnu 
/usr/lib/x86_64-linux-gnu 
/usr/lib/x86_64-linux-gnu/mesa-egl 
/usr/lib/x86_64-linux-gnu/mesa 
/usr/lib/i386-linux-gnu/mesa 
# Legacy biarch compatibility support 
/lib32 
/usr/lib32 
# Legacy biarch compatibility support 
/libx32 
/usr/libx32

但如果我将LD_LIBRARY_PATH设置为 '在/ usr/local/lib目录'：

$ export LD_LIBRARY_PATH=/usr/local/lib 
$ ldd $(which nft) 
    linux-vdso.so.1 => (0x00007ffedf9b3000) 
    libmnl.so.0 => /usr/local/lib/libmnl.so.0 (0x00007fb58a033000) 
    libnftnl.so.4 => /usr/local/lib/libnftnl.so.4 (0x00007fb589e0b000) 
    libreadline.so.6 => /lib/x86_64-linux-gnu/libreadline.so.6 (0x00007fb589ba3000) 
    libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10 (0x00007fb58992f000) 
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb58956a000) 
    libmxml.so.1 => /usr/lib/libmxml.so.1 (0x00007fb58935b000) 
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb58913d000) 
    libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007fb588f14000) 
    /lib64/ld-linux-x86-64.so.2 (0x000055a827fb3000)

任何人都可以帮助它为什么无法找到图书馆，即使它存在于搜索路径？

安装库后，您可能需要以root用户身份重新运行ldconfig。 – Petesh

是的。它解决了。谢谢。 –

答

我忘了运行ldconfig，正如@Petesh指出的那样。 runnning ldconfig后问题得到解决。

无法加载共享其存在的库搜索路径

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