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Compile .bond files of projects using my NuGet package

I have a NuGet package with a .bond file. Users of my package can derive their Bond structs from the structs in my package's .bond file.
I want the user's Bond files to be compiled when they include my NuGet package. Today they must include my NuGet and the Bond.CSharp NuGet. But, my NuGet already has a reference to Bond.CSharp.
How can I author my package so that the consumers do not need to have their own <PackageReference Include="Bond.CSharp" ... />?

Bond codegen is run from the Bond.CSharp's build targets.
By default, the build targets of packages you consume do not flow to your consumers. The default value of a PackageReference's PrivateAssets is "contentfiles;analyzers;build".
You can override this behavior in your csproj's PackageReference:
<ItemGroup>
<PackageReference Include="Bond.CSharp" Version="[9.0.3]">
<!-- removing "build" from default so that consumers also run codegen -->
<PrivateAssets>contentfiles;analyzers</PrivateAssets>
</PackageReference>
</ItemGroup>
I assume you are compiling the base struct into an assembly in your package. Bond codegen assumes that the generated code and the runtime library exactly match, so I've used an exact match version bound in the PackageReference: [9.0.3]
You said that you want your consumers to be able to derive from your Bond structs, so you'll probably also want to configure their BondImportPath to include the .bond file inside your package. To do this, you need to
make sure the .bond files are included in the package and
add a package .props file to set the BondImportPath to the package directory with said .bond files.
The make sure the .bond files are included in the package, add something like this to your package's .csproj file:
<ItemGroup>
<None Include="bond/**">
<Pack>true</Pack>
<PackagePath>build/bond/</PackagePath>
</None>
</ItemGroup>
This assumes that your .bond files live in a bond\ subdirectory.
To automatically add something to BondImportPath, you need to add a package .props file that will be automatically imported by consumers. Create a file named ExactNameOfPackage.props with the following content:
<Project>
<ItemGroup>
<BondImportDirectory Include="$(MSBuildThisFileDirectory)bond" />
</ItemGroup>
</Project>
This .props file also needs to be packed. Add this to your project's .csproj file:
<ItemGroup>
<None Include="ExactNameOfPackage.props">
<Pack>true</Pack>
<PackagePath>build/</PackagePath>
</None>
</ItemGroup>
Now, the consumer can just use a PackageReference. Any .bond files in their project will be compiled automatically, and they can use import "you-file.bond" to refer to a .bond file in your package.
Build assets do not flow transitively. The NuGet 5+ buildTransitive feature looks like it solves this, but I haven't experimented with it.
Here are the complete project files I used. The complete code is in my GitHub repository, export-bond-file-nuget.
lib-with-bond.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net5.0</TargetFramework>
<PackageId>LibWithBond</PackageId>
<Version>1.2.0</Version>
</PropertyGroup>
<ItemGroup>
<None Include="LibWithBond.props">
<Pack>true</Pack>
<PackagePath>build/</PackagePath>
</None>
<None Include="bond/**">
<Pack>true</Pack>
<PackagePath>build/bond/</PackagePath>
</None>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Bond.CSharp" Version="[9.0.3]">
<PrivateAssets>contentfiles;analyzers</PrivateAssets>
</PackageReference>
</ItemGroup>
</Project>
LibWithBond.props
<Project>
<ItemGroup>
<BondImportDirectory Include="$(MSBuildThisFileDirectory)bond" />
</ItemGroup>
</Project>
consume-lib.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<!-- I had a local NuGet source pointing to the output of running
`dotnet pack` on lib-with-bond.csproj -->
<PackageReference Include="LibWithBond" Version="1.2.0" />
</ItemGroup>
</Project>
I was able to make this work for a PackageReference. My initial experiments making it work for ProjectReference were not successful, and I ran out of time to work more on this answer.

Unable to install nuget package into azure function

I am just starting to use Azure functions in the logic apps.I have created a function that i am trying to use a Nuget package HTMLAgilityPack and getting it install via the console (in classic view). But it mentions that no project found?

To use NuGet packages in a 2.x and later C# function, upload a function.proj file to the function's folder in the function app's file system. Here is an example function.proj file that adds a reference to HtmlAgilityPack version 1.11.24:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="HtmlAgilityPack" Version="1.11.24" />
</ItemGroup>
</Project>
And add using HtmlAgilityPack; above the code, refer to the snapshot as below:

How to predict/score XGBoost or LightGBM in .NET Framework 4.6.1 application

I have a machine learning problem where I have obtained very good results on training/test data using both LightGBM and XGBoost. The next step is to obtain predictions from one of these models into an existing C# application (.NET Framework 4.6.1) Is there any library that can help me do this? What I have tried so far:
ML.NET: Should work for LigthGBM, but due to this bug it works only for .NET Core.
Windows.ML: This should be able to predict an ONNX model, and I managed to create an ONNX model from my XGBoost model. But Windows.ML seems to work only for UWP apps, at least all samples are UWP.
SharpLearning: This library has an interface to XGBoost. Unfortunately, it does not support sample weights, which I rely upon.
CNTK: Tried to load the ONNX file (similar to this example), but get: Error: ONNX (TreeEnsembleClassifier) is not supported in CNTK.
Any suggestions, or do I have to wait for ML.NET to fix the bug?

I was able to use LightGBM in a net461 console application. The above bug only occurs if you are using packages.config to manage your NuGet packages. In order to work around the listed bug in the LightGBM nuget package, you can take one of the following approaches:
Use a new "SDK-style" .csproj, but set the TargetFramework to net461.
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net461</TargetFramework>
<RuntimeIdentifier>win-x64</RuntimeIdentifier>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.ML.LightGBM" Version="0.3.0" />
</ItemGroup>
<ItemGroup>
<None Update="iris-data.txt">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
Change your normal .NET Framework .csproj to use <PackageReference> instead of packages.config. You can do this in the Package Manager Settings under Tools -> NuGet Package Manager menu. "Default package management format". You can refer to the Migrate from packages.config to PackageReference document for more info.
<ItemGroup>
<PackageReference Include="Microsoft.ML">
<Version>0.3.0</Version>
</PackageReference>
<PackageReference Include="Microsoft.ML.LightGBM">
<Version>0.3.0</Version>
</PackageReference>
</ItemGroup>

Empty Nuget package for just dependencies

I have a project I'd like to put all my dependencies into one nuget package. The idea is that when I need to I can just pull in that one nuget package instead of 10 that I require. Is this possible to do?
When I created a library I removed the class file and just pulled in the dependencies but could not get a package to create.

You can do this by setting the IncludeBuildOutput property to false while creating the package.
For example [using VS 2017] -
File > New Project > .NET Core class library
Right click on project and edit csproj to have the following content -
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net46</TargetFramework>
<PackageId>MetaPackage</PackageId>
<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
<IncludeBuildOutput>false</IncludeBuildOutput>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
<PackageReference Include="NuGet.Versioning" Version="4.7.0-rtm.5104" />
<PackageReference Include="NUnit" Version="3.10.1" />
</ItemGroup>
</Project>
Right click and build project
Look at the package at <project_dir>\bin\Debug\MetaPackage.1.0.0.nupkg
This will create a package that has no \lib and the nuspec file should have package reference dependencies.
You can read more about IncludeBuildOutput here.

How to include a library in .NET Core 2.0

I don't know much about .NET yet, so I guess I'm missing something obvious.
I created a library (targeted as a DLL file, set for .NET standard 2.0), packaged it both as a DLL file and as a NuGet package. Now I want to use the library in another project, on ASP.NET Core 2.0. How should I do it?
I am currently on a Linux VM, so I use Visual Studio Code, and therefore I would prefer some solution without using the full Visual Studio. I tried some solutions using the full Visual Studio, but that didn't work for me, because I haven't found a reference explorer anywhere.

You would have to reference your library in the .csproj file:
An empty .csproj file would look like this:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp1.1</TargetFramework>
</PropertyGroup>
</Project>
Now, you can have two types of references:
Project Reference - You have a project that serves as a class library in your solution and you want to reference it directly:
<ProjectReference Include="..\..\src\mylib.csproj" />
Package Reference - You have a link to a NuGet package:
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="1.1.2" />
Inside your .csproj file, the references should be inside an "ItemGroup" block, and each reference type should have its own "ItemGroup".
Here's an example of a .csproj file with some package references and some project references:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp1.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Autofac.Extensions.DependencyInjection" Version="4.1.0" />
<PackageReference Include="Microsoft.AspNetCore" Version="1.1.1" />
<PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.2" />
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="1.1.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="1.1.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="1.1.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="1.1.2" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="1.0.1" />
<PackageReference Include="xunit" Version="2.2.0" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.2.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\src\mylib.csproj" />
<ProjectReference Include="..\..\src\mylib2.csproj" />
</ItemGroup>
</Project>

A lot of people recommend one of two solutions:
Copy the library into your solution folder.
cp -r foo/foo ./foo
dotnet sln add foo/foo.csproj
cd bar
dotnet add reference ../foo/foo.csproj
This is a terrible solution.
Don't do this (i.e., copy and paste your library code every time you want to use it. It is bad for obvious reasons).
Setup a local NuGet repository, copy your library into the local repository, and then add it.
nuget add -name "Local" -source /home/doug/packages
nuget add ~/foo/foo.nupkg -source /home/doug/packages
Then install the package:
cd bar
dotnet add package foo
This is an acceptable solution, but the workflow is quite irritating if you are actively working on your library (foo), because the -source path must be absolute.
--
I recommend you look at dotnet add package with local package file, which explains how you can have a local cache of any custom .nupkg files you want to work with.
Basically, just drop this into your solution folder:
File NuGet.Config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<packageSources>
<add key="local" value="./packages" />
</packageSources>
</configuration>
(Notice that ./packages is a relative path, that will work even when you check your project out on an entirely different machine or OS.)
Now if you call dotnet add package X it will also look for any file called x.nupkg in your ./packages/ folder.
Now if you want to use any custom local library, all you need to do is:
cp ~/foo/foo.nupkg ./packages
cd bar
dotnet add package foo
(Note: by default NuGet caches your .nupkg files in ~/.nuget and will restore packages from that folder if you call dotnet add package X, even if you have a different X.nupkg in your local ./packages folder. You may find the command dotnet nuget locals all --clear useful if you encounter strange behaviour to ensure you're getting the exact version of the .nupkg file you want, not some arbitrary cached version)

Another way to reference the local package in the .csproj file:
<ItemGroup>
<Reference Include="MyAssembly">
<HintPath>path\to\MyAssembly.dll</HintPath>
</Reference>
</ItemGroup>

Given that the DLL file you want to reference in the new ASP.NET Core 2.0 project is relatively fresh, I suspect you will need to make changes to this original DLL file as you develop the ASP.NET project.
In this situation I would add the original DLL project as part of the ASP.NET solution so you can work on both sets of source code, including setting of breakpoints within the same solution workspace.
NuGet packaging of the original DLL project can be delayed until the first release of your whole combined solution has stabilised and you want to make that DLL file available to a larger developer audience beyond the scope of your ASP.NET application.

A good solution will be to add the library (.dll file) that you want to use to the Project's References of your project in which you want to use the library:
Right Click on the project → Add → Reference → Project → Browse → Path_to_your_generated_library (.dll)
This will automatically generate the following node in the .csproj file:
<ItemGroup>
<Reference Include="DotNetCoreClassLibraryCodeParser">
<HintPath>..\..\DotNetCoreClassLibrary\DotNetCoreClassLibrary\bin\Debug\netcoreapp2.1\DotNetCoreClassLibrary.dll</HintPath>
</Reference>
</ItemGroup>