Linux AMD64/x86_64 Problems?

[ericholmberg]

Has anybody been able to get Cobra working on amd64 systems?

I'm running Ubuntu 7.10 with the 2.6.22 kernel and Mono 1.2.4 -- I will upgrade to the latest over the weekend and see what happens.

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error: COBRA INTERNAL ERROR / NullReferenceException / A null value was found where an object instance was required.
Compilation failed - 1 error, 0 warnings


Version of Mono

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/tmp/Cobra-0.8.0/HowTo$ mono --version
Mono JIT compiler version 1.2.4 (tarball)
Copyright (C) 2002-2007 Novell, Inc and Contributors. www.mono-project.com
        TLS:           __thread
        GC:            Included Boehm (with typed GC)
        SIGSEGV:       altstack
        Architecture:  amd64
        Disabled:      none
 

[Charles]

What about version of Cobra? 0.8? The source repository?

Also, what Cobra command line and program? Maybe you're doing "mono cobra.exe hello.cobra" in the Cobra install directory, but I won't know until you tell me.

Thanks,
Chuck

[themaniac]

I got that too until I upgraded to a more recent version of mono (and it's not an amd64 thing). Upgrading to 1.2.6 fixed it for me

[ericholmberg]

Hi Chuck,

Sorry, I was a bit tired when I posted the message and editing out the command line. I was just trying to compile the hello-world program included in Cobra 0.8:

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/tmp/Cobra-0.8.0/HowTo$ cobra -c 100-PrintHelloWorld.cobra
error: COBRA INTERNAL ERROR / NullReferenceException / A null value was found where an object instance was required.
Compilation failed - 1 error, 0 warnings


I got that too until I upgraded to a more recent version of mono (and it's not an amd64 thing). Upgrading to 1.2.6 fixed it for me.

Thanks maniac -- I'll upgrade that and give it a try.

[ericholmberg]

Everything works fine with Mono 1.2.6.

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Mono JIT compiler version 1.2.6 (tarball)
Copyright (C) 2002-2007 Novell, Inc and Contributors. www.mono-project.com
   TLS:           __thread
   GC:            Included Boehm (with typed GC)
   SIGSEGV:       altstack
   Notifications: epoll
   Architecture:  amd64
   Disabled:      none


Thanks guys!

-Eric