[Mono-dev] Chiron.exe on mono crashes with System.TypeLoadException

Thomas Wiest twiest at novell.com
Tue Jul 21 12:56:14 EDT 2009

Hey Jimmy,
    I was just able to run Chiron.exe in the Mono vmware image.

Here are the steps I took:
1. Download the mono vmware image from:

2. Download the ironruby 0.6.0 zip file inside the VM

3. unzip the zip file

4. cd silverlight/bin

5. run "mono Chrion.exe"

6. Here's part of the output I got:
rupert at linux:~/Desktop/delme/silverlight/bin> mono Chiron.exe
Microsoft(R) Silverlight(TM) Development Utility. Version
Copyright (c) Microsoft Corporation.  All rights reserved.

Usage: Chiron [<options>]


So, now I'm wondering if the problem is something wrong with your VMware

For instance;
* are you out of disk space maybe?
    check with "df -h". The main filesystem is /dev/sda1. Check the
available space.

* You might have run out of inodes (this is a problem old Mono VMs had,
but was fixed in the vmware image).
    check with "df -i". Again check /dev/sda1. Check the "IUse%"

* You might have run out of ram in the VM.
    check with "free -m"

If you download a clean VMware image and follow the steps above, I'm
confident that Chiron.exe will run for you too.


Jimmy Schementi wrote:
> All,
> I'm working out some kinks with DLR running on Mono and Moonlight, and
> I found that Chiron.exe no longer runs against Mono. It works against
> 2.2, but not 2.4:
> rupert at linux:~/ironruby/Merlin/Main/Bin/Silverlight Release> mono
> Chiron.exe
> ** (Chiron.exe:18505): WARNING **: The class
> System.Diagnostics.ProcessStartInfo could not be loaded, used in
> System, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089
> Unhandled Exception: System.TypeLoadException: Could not load type
> 'System.InvalidProgramException' from assembly 'mscorlib,
> Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
> Any thoughts? You can just grab the latest IronRuby release, and
> Chiron is in "silverlight/bin"
> http://ironruby.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=29640
> ~Jimmy
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