javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed;

X

Xeth Waxman

Hello:

I have been using Javamail to successfully send text messages. I tried
adding attachments, and now I get this error:

javax.activation.UnsupportedDataTypeException: no object DCH for MIME
type multipart/mixed;
From what research I have done, this is typically a classpath issue -
but I don't even have a classpath environment variable (on WinXP Pro),
and no other instances of mail.jar or activation.jar. The application
is in a packaged jar which is invoked from the commandline with no
arguments - just java - jar <my jar here>. I tried running it once
with the -classpath switch and including the actual path to the jar,
but it didn't make any difference. Does anyone have any idea what this
could be? I am completely stumped. I'm sure you will probably need
more information, but I don't know what other information is needed -
just let me know and I'll get it up here :) I've seen several other
forums with posts like this when I was trying to google an answer, and
the solution is always something along the lines of "check your
classpath", which isn't very useful to me or some other java newbies -
Check it for what? Check it how?

--Xeth
 

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