Nick, I built the guacamole-server-1.1.0.tar.gz from the source code as well as the client.
It did not install in the /opt/guac/lib/ Here is mine: # ll /usr/local/lib/ total 17768 drwxr-xr-x 3 root root 4096 May 8 15:45 ./ drwxr-xr-x 10 root root 4096 Aug 5 2019 ../ -rw-r--r-- 1 root root 1573608 May 8 15:45 libguac-client-kubernetes.a -rwxr-xr-x 1 root root 1296 May 8 15:45 libguac-client-kubernetes.la* lrwxrwxrwx 1 root root 34 May 8 15:45 libguac-client-kubernetes.so -> libguac-client-kubernetes.so.0.0.0* lrwxrwxrwx 1 root root 34 May 8 15:45 libguac-client-kubernetes.so.0 -> libguac-client-kubernetes.so.0.0.0* -rwxr-xr-x 1 root root 735984 May 8 15:45 libguac-client-kubernetes.so.0.0.0* -rw-r--r-- 1 root root 6176060 May 8 15:45 libguac-client-rdp.a -rwxr-xr-x 1 root root 1221 May 8 15:45 libguac-client-rdp.la* lrwxrwxrwx 1 root root 27 May 8 15:45 libguac-client-rdp.so -> libguac-client-rdp.so.0.0.0* lrwxrwxrwx 1 root root 27 May 8 15:45 libguac-client-rdp.so.0 -> libguac-client-rdp.so.0.0.0* -rwxr-xr-x 1 root root 2382416 May 8 15:45 libguac-client-rdp.so.0.0.0* -rw-r--r-- 1 root root 1657192 May 8 15:45 libguac-client-ssh.a -rwxr-xr-x 1 root root 1241 May 8 15:45 libguac-client-ssh.la* lrwxrwxrwx 1 root root 27 May 8 15:45 libguac-client-ssh.so -> libguac-client-ssh.so.0.0.0* lrwxrwxrwx 1 root root 27 May 8 15:45 libguac-client-ssh.so.0 -> libguac-client-ssh.so.0.0.0* -rwxr-xr-x 1 root root 790464 May 8 15:45 libguac-client-ssh.so.0.0.0* -rw-r--r-- 1 root root 1418754 May 8 15:45 libguac-client-telnet.a -rwxr-xr-x 1 root root 1264 May 8 15:45 libguac-client-telnet.la* lrwxrwxrwx 1 root root 30 May 8 15:45 libguac-client-telnet.so -> libguac-client-telnet.so.0.0.0* lrwxrwxrwx 1 root root 30 May 8 15:45 libguac-client-telnet.so.0 -> libguac-client-telnet.so.0.0.0* -rwxr-xr-x 1 root root 681360 May 8 15:45 libguac-client-telnet.so.0.0.0* -rw-r--r-- 1 root root 1077250 May 8 15:45 libguac-client-vnc.a -rwxr-xr-x 1 root root 1203 May 8 15:45 libguac-client-vnc.la* lrwxrwxrwx 1 root root 27 May 8 15:45 libguac-client-vnc.so -> libguac-client-vnc.so.0.0.0* lrwxrwxrwx 1 root root 27 May 8 15:45 libguac-client-vnc.so.0 -> libguac-client-vnc.so.0.0.0* -rwxr-xr-x 1 root root 495760 May 8 15:45 libguac-client-vnc.so.0.0.0* -rw-r--r-- 1 root root 755592 May 8 15:45 libguac.a -rwxr-xr-x 1 root root 1077 May 8 15:45 libguac.la* lrwxrwxrwx 1 root root 17 May 8 15:45 libguac.so -> libguac.so.17.0.0* lrwxrwxrwx 1 root root 17 May 8 15:45 libguac.so.17 -> libguac.so.17.0.0* -rwxr-xr-x 1 root root 387832 May 8 15:45 libguac.so.17.0.0* drwxrwsr-x 3 root staff 4096 Aug 5 2019 python3.6/ I just ran the following ./configure --with-init-dir=/etc/init.d make make install Mike B. > On May 8, 2020 at 2:44 PM Nick Couchman <vn...@apache.org> wrote: > > > > On Fri, May 8, 2020 at 2:23 PM Michael Bauer < baue...@comcast.net > mailto:baue...@comcast.net > wrote: > > > > > > > > > > > ---------- Original Message ---------- > > > From: Michael Bauer < baue...@comcast.net > > > mailto:baue...@comcast.net > > > > To: user@guacamole.apache.org mailto:user@guacamole.apache.org > > > Date: May 8, 2020 at 2:16 PM > > > Subject: Error with Guacamole 1.1.0 > > > > > > Hello, > > > > > > I keep getting this error after logging into the Guacamole > > > Client. Is it a bug? > > > > > > Error in the /var/log/syslog > > > May 8 16:50:50 server01 guacd[9404]: Protocol "ssh" selected > > > May 8 16:50:50 server01 guacd[9404]: Unable to load client > > > plugin: Internal error > > > > > > > > > > > > No, this is probably not a bug, but probably some issue with the install. > How did you install guacd? Can you look in the install directory it and > make sure that you see the libguac-client-*.so.0.0.0 files? You should see > one for each protocol you have installed - this is what it looks like on my > system: > > # ll /opt/guac/lib/ > total 17108 > -rw-r--r--. 1 root root 759776 May 5 17:16 libguac.a > -rw-r--r--. 1 root root 1440616 May 5 17:16 libguac-client-kubernetes.a > -rwxr-xr-x. 1 root root 1235 May 5 > 17:16http://libguac-client-kubernetes.la > lrwxrwxrwx. 1 root root 34 May 5 17:16 libguac-client-kubernetes.so > -> libguac-client-kubernetes.so.0.0.0 > lrwxrwxrwx. 1 root root 34 May 5 17:16 > libguac-client-kubernetes.so.0 -> libguac-client-kubernetes.so.0.0.0 > -rwxr-xr-x. 1 root root 709328 May 5 17:16 > libguac-client-kubernetes.so.0.0.0 > -rw-r--r--. 1 root root 6123076 May 5 17:16 libguac-client-rdp.a > -rwxr-xr-x. 1 root root 1160 May 5 17:16http://libguac-client-rdp.la > lrwxrwxrwx. 1 root root 27 May 5 17:16 libguac-client-rdp.so -> > libguac-client-rdp.so.0.0.0 > lrwxrwxrwx. 1 root root 27 May 5 17:16 libguac-client-rdp.so.0 -> > libguac-client-rdp.so.0.0.0 > -rwxr-xr-x. 1 root root 2400560 May 5 17:16 libguac-client-rdp.so.0.0.0 > -rw-r--r--. 1 root root 1480436 May 5 17:16 libguac-client-ssh.a > -rwxr-xr-x. 1 root root 1180 May 5 17:16http://libguac-client-ssh.la > lrwxrwxrwx. 1 root root 27 May 5 17:16 libguac-client-ssh.so -> > libguac-client-ssh.so.0.0.0 > lrwxrwxrwx. 1 root root 27 May 5 17:16 libguac-client-ssh.so.0 -> > libguac-client-ssh.so.0.0.0 > -rwxr-xr-x. 1 root root 745104 May 5 17:16 libguac-client-ssh.so.0.0.0 > -rw-r--r--. 1 root root 1238450 May 5 17:16 libguac-client-telnet.a > -rwxr-xr-x. 1 root root 1203 May 5 > 17:16http://libguac-client-telnet.la > lrwxrwxrwx. 1 root root 30 May 5 17:16 libguac-client-telnet.so -> > libguac-client-telnet.so.0.0.0 > lrwxrwxrwx. 1 root root 30 May 5 17:16 libguac-client-telnet.so.0 > -> libguac-client-telnet.so.0.0.0 > -rwxr-xr-x. 1 root root 626504 May 5 17:16 > libguac-client-telnet.so.0.0.0 > -rw-r--r--. 1 root root 1045220 May 5 17:16 libguac-client-vnc.a > -rwxr-xr-x. 1 root root 1142 May 5 17:16http://libguac-client-vnc.la > lrwxrwxrwx. 1 root root 27 May 5 17:16 libguac-client-vnc.so -> > libguac-client-vnc.so.0.0.0 > lrwxrwxrwx. 1 root root 27 May 5 17:16 libguac-client-vnc.so.0 -> > libguac-client-vnc.so.0.0.0 > -rwxr-xr-x. 1 root root 496392 May 5 17:16 libguac-client-vnc.so.0.0.0 > -rwxr-xr-x. 1 root root 1017 May 5 17:16http://libguac.la > lrwxrwxrwx. 1 root root 17 May 5 17:16 libguac.so -> > libguac.so.17.0.0 > lrwxrwxrwx. 1 root root 17 May 5 17:16 libguac.so.17 -> > libguac.so.17.0.0 > -rwxr-xr-x. 1 root root 403504 May 5 17:16 libguac.so.17.0.0 > > You can see that there are plugins for SSH, Telnet, VNC, RDP, and > Kubernetes. Your gaucd install directory should have those libraries in it > based on what you've installed. > > -Nick >