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https://issues.apache.org/jira/browse/GUACAMOLE-1027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17084019#comment-17084019
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Nick Couchman commented on GUACAMOLE-1027:
------------------------------------------
The most likely explanation for this is that you are using a mismatched version
of Guacamole Client with Guacamole Server (e.g. guacamole-server 1.0.0 with
guacamole-client 1.1.0). Prior to version 1.1.0 the versions needed to match
up. Starting with version 1.1.0 there is some negotiation done between the two
to better enable cross-version compatibility, thought it's still a good idea to
keep them in sync.
If you have further questions please post to the mailing list before opening a
JIRA issue:
http://guacamole.apache.org/support/
> Guacamole logs “Wrong number of arguments”
> ------------------------------------------
>
> Key: GUACAMOLE-1027
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1027
> Project: Guacamole
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.1.0
> Environment: 32-bit Ubuntu 18.04.4 LTS (GNU/Linux 4.15.0-88-generic
> i686) with Tomcat 8
> Reporter: Klaus Bergmann
> Priority: Major
>
> I've built and installed Guacamole 1.0.0 and Tomcat 8.
> Make and install went fine so far. Tomcat and Guacamole are running.
> However I fail to connect (tried SSH and RDP).
> Syslog says:
> {{Apr 13 21:05:17 myserver guacd[28616]: Creating new client for protocol
> "ssh"
> Apr 13 21:05:17 myserver guacd[28616]: guacd[28616]: INFO:#011Creating new
> client for protocol "ssh"
> Apr 13 21:05:17 myserver guacd[28616]: guacd[28616]: INFO:#011Connection ID
> is "$431c40da-9530-49e8-9f1a-72122d2a5e46"
> Apr 13 21:05:17 myserver guacd[28616]: Connection ID is
> "$431c40da-9530-49e8-9f1a-72122d2a5e46"
> Apr 13 21:05:17 myserver guacd[28654]: Wrong number of arguments
> Apr 13 21:05:17 myserver guacd[28616]: guacd[28654]: ERROR:#011Wrong number
> of arguments
> Apr 13 21:05:17 myserver guacd[28616]: guacd[28654]: ERROR:#011Unable to load
> client plugin
> Apr 13 21:05:17 myserver guacd[28654]: Unable to load client plugin
> Apr 13 21:05:17 myserver guacd[28616]: guacd[28616]: INFO:#011Connection
> "$431c40da-9530-49e8-9f1a-72122d2a5e46" removed.
> Apr 13 21:05:17 myserver guacd[28616]: Connection
> "$431c40da-9530-49e8-9f1a-72122d2a5e46" removed.}}
> For the completeness sake my configure-output before {{make && make install}}:
> {{------------------------------------------------
> guacamole-server version 1.0.0
> ------------------------------------------------
> Library status:
> freerdp ............. yes
> pango ............... yes
> libavcodec .......... yes
> libavutil ........... yes
> libssh2 ............. yes
> libssl .............. yes
> libswscale .......... yes
> libtelnet ........... yes
> libVNCServer ........ yes
> libvorbis ........... yes
> libpulse ............ yes
> libwebp ............. yes
> wsock32 ............. no
> Protocol support:
> RDP ....... yes
> SSH ....... yes
> Telnet .... yes
> VNC ....... yes
> Services / tools:
> guacd ...... yes
> guacenc .... yes
> guaclog .... yes
> Init scripts: no
> Systemd units: /etc/systemd/system}}
> I'm running 32-bit Ubuntu 18.04.4 LTS (GNU/Linux 4.15.0-88-generic i686).
> I tried the latest Guacamole 1.1.0 first having the same error.
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