.NET Framework Issue

[Gianpiero]

I get the following error messages when I try to compile an indicator:

NinjaScript File Error
\NETFramework,Version=v4\8\AssemblyAttributes.cs Duplicate 'global::System.Runtime.Versioning.TargetFramework Attribute' attribute
\NETFramework,Version=v4\8\AssemblyAttributes.cs Duplicate 'global::System.Runtime.Versioning.TargetFramework Attribute' attribute
\NETFramework,Version=v4\8\AssemblyAttributes.cs Duplicate 'global::System.Runtime.Versioning.TargetFramework Attribute' attribute

The following is my current .NET environment:

.NET SDK:
Version: 8.0.100-rc.2.23502.2
Commit: 0abacfc2b6

Runtime Environment:
OS Name: Windows
OS Version: 10.0.22621
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\8.0.100-rc.2.23502.2\

.NET workloads installed:
There are no installed workloads to display.

Host:
Version: 8.0.0-rc.2.23479.6
Architecture: x64
Commit: 0b25e38ad3

.NET SDKs installed:
7.0.402 [C:\Program Files\dotnet\sdk]
8.0.100-rc.2.23502.2 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.23 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.0-rc.2.23480.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.23 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.0-rc.2.23479.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.23 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.0-rc.2.23479.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\I nstallLocation]

Environment variables:
Not set

global.json file:
Not found

Could you, please help me sort this out?

[NinjaTrader_BrandonH]

Hello Gianpiero,

Thanks for your post.

The error looks like you may have an AssemblyAttributes.cs file in the Custom folder which is conflicting with a .NET file. This may occur when building something in Visual Studio

Open a File Explorer window and check in Documents > NinjaTrader 8 > bin > Custom >obj > Debug for a file named AssemblyAttributes.cs. If you find this file, delete the obj as well as the bin folders within the Custom folder.

Doing a build from Visual Studio could cause multiple files to occur. Note that you should never compile from Visual Studio.

From the Visual Studio Debugging help guide: You can also use Visual Studio as editor for your NinjaScript files - for that open the project as in step 2 above and then use Visual Studio for editing and once done save the file (don't run or build the solution then in Visual Studio), preferably with the NinjaScript editor opened still at the same time, so changes would be auto compiled in then.

Visual Studio Debugging: https://ninjatrader.com/support/help..._debugging.htm

Here is a forum thread detailing this compilation error and resolving it: https://forum.ninjatrader.com/forum/...rk#post1127976

[Gianpiero]

I resolved this issue. Thank you very much!