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Unable to Enable NinjaTrader.Core.dll LOTS of errors when Building Visual Studio 2019

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    Unable to Enable NinjaTrader.Core.dll LOTS of errors when Building Visual Studio 2019

    Hi all, I am working on building my first strategy, and I am using Visual Studio Community Edition 2019. I am working through a Udemy course online, and trying to create a new class in NinjaTrader.Custom.csproj. When I create this strategy, I can see all of NinjaTrader's indicators and strategies in Visual Studio's Solution Browser. I can build the most basic strategy and it returns 2225 errors. In Virtual Studio's Error List these errors reference NinjaTrader's indicators and strategies. If I click on any one of the strategies in the Solution Explorer (@SampleMACrossOver.cs for example), then I see red text for methods like CrossAbove(), Add(), etc. When I hover over this text it reads "The name 'Add' does not exist in the current context. Cannot resolve symbol 'Add.'" Next I checked my references, by right clicking on References (in the Solution Explorer), Add Reference. I see both NinjaTrader.Core.dll and WilsonORMapper.DLL. I can check WilsonORMapper. However, when I click NinjaTrader.core, it appears to check, then I click OK. When I re-enter the Reference Manager, NinjaTrader.core is now unchecked.
    First question: Will the fact that NinjaTrader.Core is not enabling cause the errors with the methods (like Add, CrossAbove, EnterShort) I mentioned?f
    Second question: How do I fix NinjaTrader.Core so it stays active?

    Note: I just uninstalled NinjaTrader 7, removed all directories from My Documents, and re-installed. Prior to this, I could not find NinjaTrader.Core.dll in my bin folder. It was available in bin64, however, that file would not work (probably because I'm using NT7 32-bit.)

    Thank you all for your help in advance, please let me know if there's any additional information that might help out.

    Nate.

    #2
    Here are some screen grabs of what I'm seeing.
    Attached Files

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      #3
      Okay I seemingly figured it out. I think the simplest way to go to the Solution Explorer, and expand References. In References I could see NinjaTrader.Core, but it had a yellow warning icon. I right clicked on it, and selected Remove. Then I right clicked References above, and selected Add Reference. I then navigated to C:\Program Files (x86)\Ninja Trader 7\bin\ and selected NinjaTrader.Core.dll. That seemed to work.

      Something else I did in the process was to completely uninstall Ninja, and to re-install it. Prior to this, there was not a NinjaTrader.Core.dll file in that folder. So this was a problem, but I did read about another guy (https://ninjatrader.com/support/foru...-error-warning) installing NT7 on another PC, copying the file from there, and doing kinda what I did.

      Hope this helps to anyone else who's had this problem.

      Comment


        #4
        Hello Nate G,

        It will not be necessary to uninstall and re-install NinjaTrader.

        Below is a link to a forum post with instructions for opening the NinjaTrader project file and add the missing references and includes a video.
        https://ninjatrader.com/support/foru...37#post1058137
        Chelsea B.NinjaTrader Customer Service

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