Integrating existing DLL in NT7 indi

February 13th, 2011, 11:46 AM

hi,

I try to develop an indicator for NT. The indicator uses a couple of existing classes already build as an assembly (DLL) in Visual Studio. This assembly needs to be used with a couple of additional DLL for other reasons.

When trying to use any element of this assembly everything is fine in Visual Studio - adaption of the custom project as described in this forum - and compiles as well perfectly in NT7.

But when trying to add an indi to an open chart i get the following errormessage:
"Unable to retrieve typeinfos from assembly "NinjaTrader.Custom": ..."

Has anyone a hint for me?

Thx
Martin

February 13th, 2011, 12:40 PM

additional info:

now, after I programmed my first custom indi with VS not working with the external DLL I get another bad result.

After shutting NT7 down an restarting I only get the error-screen:

martin

February 14th, 2011, 07:58 PM

You checked your trace file? I'm guessing you added any needed references to NT?

Mike

February 15th, 2011, 04:01 AM

Hallo Mike,

thanks for your advice. I've to confess, that I'm a newbee with NT. With C# my experiences are not that bad.

But to your advice:
I suppose with tracefile you think of the NT logfile in the lob directory. There I find:

Quoting

13.02.2011 18:34:19|0|4|Unable to retrieve type infos from assembly 'NinjaTrader.Custom': System.Reflection.ReflectionTypeLoadException: Mindestens ein Typ in der Assembly kann nicht geladen werden. Rufen Sie die LoaderExceptions-Eigenschaft ab, wenn Sie weitere Informationen ben�tigen.
bei System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark)
bei System.Reflection.Assembly.GetTypes()
bei NinjaTrader.Cbi.AssemblyDictionary.GetTypes(Type superClass)
13.02.2011 18:34:21|1|4|Your hidden '_Workspaces' workspace is corrupted and could not be restored. A new '_Workspaces' workspace has been created however you have unfortunately lost your prior settings for this workspace.
13.02.2011 18:34:21|1|4|Order entry hot keys disabled
13.02.2011 18:34:21|1|2|Optimized CPU performance enabled
13.02.2011 18:34:21|1|4|Automated trading disabled

I suppose it's true, that I did not include one of the necessary DLL files in the script.

But what can I do at the moment? NT does not start.
And is there a way to find out perhaps what types are not found bei NT when loading the script? It would give me a hint concerning the missing DLL.

Thx
Martin

February 15th, 2011, 06:04 AM

Tracefile found as well

Martin

February 15th, 2011, 06:05 AM

tracefile found as well

martin

NinjaTrader · February 15th, 2011, 12:27 PM

Martin,
Your custom script likely is causing the problem, just a guess. Please route this issue to our support and we can help you there. Provide me with your support ticket # and I will be sure someone gets on top of this right away.

February 15th, 2011, 02:32 PM

Hi NinjaTrader,
a kind and competent member of your support staff already helped me in fixing my secondary problem, i.e. NT starts again, and I know all I have to do is to delete the problematic indi-cs from the custom project. NT does not look for the missing DLL anymore.

With my original problem I'm still at the starting point. How to find out which are the relevant DLL to integrate.

Thanks for the offer and thanks for the fast help

Martin

Integrating existing DLL in NT7 indi

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Integrating existing DLL in NT7 indi