Thank you Dave, unfortunately I am a bit hopeless when it comes to debugging these types of issues.
However I persevered and managed to get some clues from various .NET posts, some of which pointed at file system problems. I was able to determine that I was trying to write to a non-existent directory when calling the img.save in .NET. I fixed that directory path and it solved my issue. I think I'll write a brief blog post about this as the error message is so non-descriptive that it could be a real pain to debug in some situations. I know why I love CF - at least we get decent error messages (usually anyway). Cheers Stefan On 8 Jul 2011, at 10:50, Dave Watts wrote: > >> My CF 9 machine on EC2 has suddenly started throwing this error (which I am >> catching): >> System.Runtime.InteropServices.ExternalException >> >> I am logging Type, Message and Detail but this is all I see - >> System.Runtime.InteropServices.ExternalException >> >> I guess this points again at the .NET integration I am running? Or does >> anyone else know what may cause this? > > Yes, this is a .NET error. I don't know if it's being thrown by your > library or by the .NET integration service library, though. You might > try enabling some form of logging within your library, or try running > your library from another .NET client with the same inputs. > > Dave Watts, CTO, Fig Leaf Software > http://www.figleaf.com/ > http://training.figleaf.com/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:346151 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
