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Re: Phantomjs can't find libQt5Core.so.5 via ldd on buster

Did you try to run ldconfig before launching that app?

regards
Bartosz Fenski

On 2019-11-14 17:01, Andreas Tille wrote:

On Thu, Nov 14, 2019 at 10:59:43AM +0100, Gudjon I. Gudjonsson wrote:

Is /etc/ld.so.conf.d/ changed on your machine?


No.

$ cat /etc/ld.so.conf
include /etc/ld.so.conf.d/*.conf

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



What does
strace phantomjs --version
That should give you an indication where the program is looking for libraries. 

$ LANG=C strace phantomjs --version 2> /tmp/phantomjs.strace
$ grep 'No such file or directory' /tmp/phantomjs.strace | grep libQt5Core.so.5 
openat(AT_FDCWD, "/usr/lib/phantomjs/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "tls/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "tls/x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "tls/x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "tls/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
openat(AT_FDCWD, "x86_64/x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC)
= -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
openat(AT_FDCWD, "x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
openat(AT_FDCWD, "libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT
(No such file or directory)
openat(AT_FDCWD,
"/lib/x86_64-linux-gnu/tls/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/tls/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD,
"/lib/x86_64-linux-gnu/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD,
"/usr/lib/x86_64-linux-gnu/tls/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD,
"/usr/lib/x86_64-linux-gnu/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD,
"/usr/lib/x86_64-linux-gnu/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/tls/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD,
"/usr/lib/x86_64-linux-gnu/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/tls/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/tls/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/tls/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/tls/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/tls/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64/libQt5Core.so.5",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
writev(2, [{iov_base="/usr/lib/phantomjs/phantomjs", iov_len=28},
{iov_base=": ", iov_len=2}, {iov_base="error while loading shared
libra"..., iov_len=36}, {iov_base=": ", iov_len=2},
{iov_base="libQt5Core.so.5", iov_len=15}, {iov_base=": ", iov_len=2},
{iov_base="cannot open shared object file", iov_len=30}, {iov_base=":
", iov_len=2}, {iov_base="No such file or directory", iov_len=25},
{iov_base="\n", iov_len=1}], 10/usr/lib/phantomjs/phantomjs: error
while loading shared libraries: libQt5Core.so.5: cannot open shared
object file: No such file or directory
Hmmm, actually the location where the library can be found is not included: 

$ grep 'No such file or directory' /tmp/phantomjs.strace | grep
libQt5Core.so.5 | grep /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
$



Hope that helps.


May be to get some clue for somebody else - I have no idea why
   /usr/lib/x86_64-linux-gnu
is not searched.

Kind regards

      Andreas.
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