/bin/mkdir -p '/usr/local/lib'
 /bin/bash ../libtool   --mode=install /usr/bin/install -c -s  libtorrent-rasterbar.la '/usr/local/lib'
libtool: install: /usr/bin/install -c .libs/libtorrent-rasterbar.so.9.0.0 /usr/local/lib/libtorrent-rasterbar.so.9.0.0
libtool: install: strip --strip-unneeded /usr/local/lib/libtorrent-rasterbar.so.9.0.0
libtool: install: (cd /usr/local/lib && { ln -s -f libtorrent-rasterbar.so.9.0.0 libtorrent-rasterbar.so.9 || { rm -f libtorrent-rasterbar.so.9 && ln -s libtorrent-rasterbar.so.9.0.0 libtorrent-rasterbar.so.9; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libtorrent-rasterbar.so.9.0.0 libtorrent-rasterbar.so || { rm -f libtorrent-rasterbar.so && ln -s libtorrent-rasterbar.so.9.0.0 libtorrent-rasterbar.so; }; })
libtool: install: /usr/bin/install -c .libs/libtorrent-rasterbar.lai /usr/local/lib/libtorrent-rasterbar.la
libtool: install: /usr/bin/install -c .libs/libtorrent-rasterbar.a /usr/local/lib/libtorrent-rasterbar.a
libtool: install: strip --strip-debug /usr/local/lib/libtorrent-rasterbar.a
libtool: install: chmod 644 /usr/local/lib/libtorrent-rasterbar.a
libtool: install: ranlib /usr/local/lib/libtorrent-rasterbar.a
libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/sbin" ldconfig -n /usr/local/lib
----------------------------------------------------------------------
Libraries have been installed in:
   /usr/local/lib

qbittorrent-nox: error while loading shared libraries: libtorrent-rasterbar.so.9: cannot open shared object file: No such file or directory

[Unit]
Description=qbittorrent-nox
Documentation=man:qbittorrent-nox
DefaultDependencies=yes
After=network-online.target nss-lookup.target
Before=multi-user.target

[Service]
User=*username*
Group=*group*
Type=simple
ExecStart=/usr/local/bin/qbittorrent-nox -d
Nice=10
StandardError=null
StandardOutput=null
TimeoutSec=360s

[Install]
WantedBy=multi-user.target

● qbittorrent.service - qbittorrent-nox
   Loaded: loaded (/etc/systemd/system/qbittorrent.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2018-07-08 00:07:58 HKT; 32s ago
     Docs: man:qbittorrent-nox
  Process: 3486 ExecStart=/usr/local/bin/qbittorrent-nox -d (code=exited, status=127)
 Main PID: 3486 (code=exited, status=127)

Jul 08 00:07:58 greybox systemd[1]: Started qbittorrent-nox.
Jul 08 00:07:58 greybox systemd[1]: qbittorrent.service: Main process exited, code=exited, status=127/n/a
Jul 08 00:07:58 greybox systemd[1]: qbittorrent.service: Unit entered failed state.
Jul 08 00:07:58 greybox systemd[1]: qbittorrent.service: Failed with result 'exit-code'.

sudo systemctl edit qbittorrent

[Service]
Environment="LD_LIBRARY_PATH=/usr/local/lib:${LD_LIBRARY_PATH}"

Downloads\DiskWriteCacheSize=1024
Downloads\DiskWriteCacheTTL=60