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Hi every one,
I will appreciate your help regarding lean engine release update, i have for a long time managed to build my lean engine succesfully and used it smoothly on my windows pc, but some reason during the latest releases it started targeting .Net 4.6 and build failure in quantconnect.toolbox, quantconnect.launcher due to missing refernce in assembly, i have tried to run nuget but dont know which package to update and how to use it.
Any help will be greatly appreciated.
Regards
Essam Saied
Jared Broad
Hey Essam; can you please post the full error log for better assistance debugging? Thank you!
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Essam Saed
Hi Jared,
Sorry for the lack of info in the previous one since i had to roll back the upgrade to be able to run lean, and i have updated it now to the last build, and here is a part of the build output,
19> QuantConnect.Report -> C:\Users\essam\source\repos\Lean\Report\bin\Debug\QuantConnect.Report.exe 19> IsWindows true 19> IsOSX false 19> IsLinux false 19> ForceLinuxBuild 19> SelectedOptimization 17> No way to resolve conflict between "System.Net.Http, Version=4.1.1.3, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" and "System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a". Choosing "System.Net.Http, Version=4.1.1.3, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" arbitrarily. 17> Consider app.config remapping of assembly "System.Net.Sockets, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" from Version "4.0.0.0" [C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Net.Sockets\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Sockets.dll] to Version "4.1.1.0" [C:\Users\essam\source\repos\Lean\packages\System.Net.Sockets.4.3.0\lib\net46\System.Net.Sockets.dll] to solve conflict and get rid of warning. 17> Consider app.config remapping of assembly "System.Security.Cryptography.Algorithms, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" from Version "4.0.0.0" [C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Security.Cryptography.Algorithms\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Security.Cryptography.Algorithms.dll] to Version "4.1.0.0" [C:\Users\essam\source\repos\Lean\packages\System.Security.Cryptography.Algorithms.4.3.0\lib\net461\System.Security.Cryptography.Algorithms.dll] to solve conflict and get rid of warning. 17> Consider app.config remapping of assembly "System.ValueTuple, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" from Version "4.0.0.0" [C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ValueTuple\v4.0_4.0.0.0__cc7b13ffcd2ddd51\System.ValueTuple.dll] to Version "4.0.2.0" [C:\Users\essam\source\repos\Lean\packages\System.ValueTuple.4.4.0\lib\net461\System.ValueTuple.dll] to solve conflict and get rid of warning. 17> Consider app.config remapping of assembly "System.Net.Http, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" from Version "4.0.0.0" [C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6.2\System.Net.Http.dll] to Version "4.1.1.3" [C:\Users\essam\source\repos\Lean\Brokerages\bin\Debug\System.Net.Http.dll] to solve conflict and get rid of warning. 17>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets(2081,5): warning MSB3276: Found conflicts between different versions of the same dependent assembly. Please set the "AutoGenerateBindingRedirects" property to true in the project file. For more information, see http://go.microsoft.com/fwlink/?LinkId=294190. 17>C:\Users\essam\source\repos\Lean\ToolBox\EstimizeDataDownloader\EstimizeDataDownloader.cs(27,18,27,22): error CS0234: The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) 17>C:\Users\essam\source\repos\Lean\ToolBox\EstimizeDataDownloader\EstimizeDataDownloader.cs(28,18,28,22): error CS0234: The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) 17>C:\Users\essam\source\repos\Lean\ToolBox\TradingEconomicsDataDownloader\TradingEconomicsDataDownloader.cs(19,18,19,22): error CS0234: The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) 17>C:\Users\essam\source\repos\Lean\ToolBox\TradingEconomicsDataDownloader\TradingEconomicsDataDownloader.cs(20,18,20,22): error CS0234: The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) 18> QuantConnect.Research -> C:\Users\essam\source\repos\Lean\Research\bin\Debug\QuantConnect.Research.dll 18> IsWindows true 18> IsOSX false 18> IsLinux false 18> ForceLinuxBuild 20>------ Rebuild All started: Project: QuantConnect.Lean.Launcher, Configuration: Debug Any CPU ------ 20>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets(2081,5): warning MSB3270: There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "C:\Users\essam\source\repos\Lean\Research\bin\Debug\QuantConnect.Research.dll", "AMD64". This mismatch may cause runtime failures. Please consider changing the targeted processor architecture of your project through the Configuration Manager so as to align the processor architectures between your project and references, or take a dependency on references with a processor architecture that matches the targeted processor architecture of your project. 20>CSC : error CS0006: Metadata file 'C:\Users\essam\source\repos\Lean\ToolBox\bin\Debug\QuantConnect.ToolBox.exe' could not be found 21>------ Rebuild All started: Project: QuantConnect.Tests, Configuration: Debug Any CPU ------ 21>CSC : error CS0006: Metadata file 'C:\Users\essam\source\repos\Lean\Launcher\bin\Debug\QuantConnect.Lean.Launcher.exe' could not be found 21>CSC : error CS0006: Metadata file 'C:\Users\essam\source\repos\Lean\ToolBox\bin\Debug\QuantConnect.ToolBox.exe' could not be found ========== Rebuild All: 16 succeeded, 3 failed, 2 skipped ==========And thanks very much for your support
Regards
Essam Saied
Essam Saed
And here is the entire error list
Severity Code Description Project File Line Suppression State Error CS0234 The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) QuantConnect.ToolBox C:\Users\essam\source\repos\Lean\ToolBox\EstimizeDataDownloader\EstimizeDataDownloader.cs 27 Active Error CS0234 The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) QuantConnect.ToolBox C:\Users\essam\source\repos\Lean\ToolBox\EstimizeDataDownloader\EstimizeDataDownloader.cs 28 Active Error CS0234 The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) QuantConnect.ToolBox C:\Users\essam\source\repos\Lean\ToolBox\TradingEconomicsDataDownloader\TradingEconomicsDataDownloader.cs 19 Active Error CS0234 The type or namespace name 'Http' does not exist in the namespace 'System.Net' (are you missing an assembly reference?) QuantConnect.ToolBox C:\Users\essam\source\repos\Lean\ToolBox\TradingEconomicsDataDownloader\TradingEconomicsDataDownloader.cs 20 Active Error CS0006 Metadata file 'C:\Users\essam\source\repos\Lean\ToolBox\bin\Debug\QuantConnect.ToolBox.exe' could not be found QuantConnect.Lean.Launcher C:\Users\essam\source\repos\Lean\Launcher\CSC 1 Active Error CS0006 Metadata file 'C:\Users\essam\source\repos\Lean\Launcher\bin\Debug\QuantConnect.Lean.Launcher.exe' could not be found QuantConnect.Tests C:\Users\essam\source\repos\Lean\Tests\CSC 1 Active Error CS0006 Metadata file 'C:\Users\essam\source\repos\Lean\ToolBox\bin\Debug\QuantConnect.ToolBox.exe' could not be found QuantConnect.Tests C:\Users\essam\source\repos\Lean\Tests\CSC 1 ActiveThanks
Alexandre Catarino
Hi Essam Saed ,
Are you running the latest version of Lean? Does your system have .Net Framework 4.6.2?
I would recommend getting those and rebuild with a clean version of Lean (remove all packages and let nuget fetch them again).
Essam Saed
Dear Alexandre Catarino
Thanks for your reply, I have tried as you suggested but still, I receive the same errors,
I have downloaded the latest lean version and I do have .Net framework 4.6.2 but i don't know why i receive this build error any other suggestions.
Thanks
Alexandre Catarino
Hi Essam Saed ,
This warning message:
warning MSB3270: There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "C:\Users\essam\source\repos\Lean\Research\bin\Debug\QuantConnect.Research.dll", "AMD64". This mismatch may cause runtime failures. Please consider changing the targeted processor architecture of your project through the Configuration Manager so as to align the processor architectures between your project and references, or take a dependency on references with a processor architecture that matches the targeted processor architecture of your project.
gives us a hint that you might be compiling Lean with the wrong processor architecture. That's why I asked you to get the latest version since a similar issue was solved by #4593...
Do you know which Lean version had worked on your computer? The Net Framework upgrade can be the cause, but it was merged mid-May. However, it's likely an issue with your system, and probably you will have to do a major clean up (remove and reinstall Net Framework, Visual Studio, etc).
Essam Saed
Dear Alexandre Catarino
Thanks very much for your suggestions, i have tried it and reinstalled visual studio and lean from scratch and it worked greatly
Thanks
Essam Saed
The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
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