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java.lang.NoClassDefFoundError
Exception in thread "main" java.lang.ClassFormatError: vchat2_6_1 (Illegal constant pool type)
With server side errors you need to sort through all the startup status messages for something that looks like an error. The following is a list of known startup errors you could get.
java.net.BindException: Address in use
java.net.BindException: Cannot assign requested address
server.host
. This error is most common with people using NAT. The address specified in your license must be the actual IP address on the machine, and NOT the IP address that your NAT router is forwarding.java.security.SignatureException: invalid license
Please download a trial key from www.volano.com.
java.io.FileNotFoundException: ./conf/key.txt (No such file or directory)
key.txt
was not found in the conf
directory of your VolanoChat installation.key.txt
and placed it in your conf
directory of your VolanoChat installation.Unable to start server (COM.volano.j)
key.txt
contains either a line break or is word wrapped.key.txt
file is in plain text format and that the license string contains no line breaks or word wrapping.Errors you might see in your error.log
file
java.net.SocketException: Connection reset by peer
java.net.SocketException: Too many open files in system
startup.sh
file. For more information, please see [4.0] Installation.When diagnosing problems on the client side, there are 3 sources of information: any error message webpages, the status information in the Java applet, and your Java console. You can enable the Java console by....
This error is caused by one of two conditions: a down server or a communication problem between client and server. First, make sure the chat server is actually running. If it is, then either the client applet properties file doesn't have the correct port settings or there is something like a proxy server or firewall preventing direct communication. To test this, open up a telnet session and try to connect to the port and IP address of the server. This can be done on a windows machine by typing this at the command prompt:
telnet 192.168.1.1 8000
Notice that there is no colon after the IP address. Also, make sure to replace the IP and port listed here with the IP and port of your own server.
Finally, make sure that the VolanoChat software is running on the same machine that is serving up your chat page. A security restriction in Java only allows an applet to connect back to the machine from which it was called.
Internet Explorer displays this message in the browser status area if any of the VolanoChat applet true or false properties are left undefined in its properties file. To work around the problem, make sure all of the following properties are included in the properties file you have defined for the applet:
override.myvolanochat=true history.enable=false member.editable.name=true member.editable.profile=true alert.entrance.default=false alert.audio.default=false alert.count.default=false webtouring.default=false image.button.border=true page.newwindow=false page.use.document.base=false
You can define the values differently than their defaults shown above, but each property must be found in the file. This problem was fixed in VolanoChat Version 2.1.7.
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