We Keep Coding

Missing assembly reference to implement an `IPreprocessBuildWithReport`?

All I want is to implement a simple IPreprocessBuildWithReport to write a .csv file...
using System.IO;
using System.Text;
using UnityEditor;
using UnityEditor.Build;
using UnityEditor.Build.Reporting;
using UnityEditor.Callbacks;
namespace My.App.Scripts
{
public class MyStuffDoer : IPreprocessBuildWithReport
public int callbackOrder => 0;
public void OnPreprocessBuild(BuildReport report)
{
DoMyStuff();
}
[DidReloadScripts]
public static void DoMyStuff()
{
...
}
}
}
Rider is happy to accommodate me, but Unity is refusing to build, insisting that
The type or namespace 'Build' does not exist in the namespace 'UnityEditor' (are you missing an assembly reference?)
The type or namespace 'Callbacks' does not exist in the namespace 'UnityEditor' (are you missing an assembly reference?)
The type or namespace 'IPreprocessBuildWithReport' could not be found (are you missing a using directive or an assembly reference?)
The type or namespace 'BuildReport' could not be found (are you missing a using directive or an assembly reference?)
The type or namespace 'DidReloadScriptsAttribute' could not be found (are you missing a using directive or an assembly reference?)
The type or namespace 'DidReloadScripts' could not be found (are you missing a using directive or an assembly reference?)
Stop asking me, Unity, I don't know! AM I?!
Can't seem to find anything remotely useful on the internet in regards to this.
And all the examples I find just toss their IPreprocessBuildWithReport implementation at me, with absolutely no mention of an assembly.
How do you implement an IPreprocessBuildWithReport?

You need to put your editor scripts into folders called "Editor" = )
Your script compiles and runs in the editor environment. Your specific method is found and executed by the editor when building the executable app. But since it's an Editor script, and not a production script, it needs to be recognized by Unity as being part of the extended Editor, not of your app.
Unity is not always intuitive, but it does love you <3

Visual Studio Code: The type or namespace name 'IntPtr' could not be found

How can I get the code submitted by user "Brian" at How to send text to Notepad in C#/Win32? to work in Visual Studio Code.
I did a "Dotnet add package System.Runtime" and that seem to add the System.Runtime package, but I am still get a compile error:
WriteNotepad.cs(10,50): error CS0246: The type or namespace name 'IntPtr' could not be found (are you missing a using directive or an assembly reference?)
Stephen

IntPtr is in the System namespace so include this up top.
using System;

Algolia - Push Data

Following the example of how to push data to algolia, tried to connect only to Algolia with SearchClient, have installed the Algolia with .NET CLI (dotnet add package Algolia.Search) in VS Code.
The code is the follow:
using System;
using System.Threading.Tasks;
using Algolia.Search;
using System.Net.Http;
using Newtonsoft.Json.Linq;
namespace Example
{
class Program
{
static async Task Main(string[] args)
{
SearchClient client = new SearchClient("SUMI5AMP4H", "Admin API Key");
SearchIndex index = client.InitIndex("demo_ecommerce");
Console.WriteLine("Hello World!");
}
}
}
with command dotnet run
that returns:
Program.cs(13,13): error CS0246: The type or namespace name
'SearchClient' could not be found (are you missing a using directive
or an assembly reference?)
Program.cs(14,13): error CS0246: The type or namespace name
'SearchIndex' could not be found (are you missing a using directive or
an assembly reference?)
The project was created with dotnet new console
So having the Algolia.Search package installed how does it not recognize SearchClient and SearchIndex?

Was able to figure it out, needed to take look at the package of the Algolia.Search, so to find the location search for Algolia.Search.dll as defined in the project.assets.json.
The path is the follow C:\Users\{user}\.nuget\packages\algolia.search\6.3.0\lib\netstandard2.0 that where the package/dll is located now to see the code installed JetBrains dotPeek and opened the dll and search for SearchClient Class that was in Clients namespace.
So change using Algolia.Search; to using Algolia.Search.Clients; and already works and recognizes.

As you discovered, there was an issue with the provided snippet. I've just updated it and my colleagues deployed it. You should now see the correct snippets appear on the https://www.algolia.com/doc/onboarding/ page.
Thank you very much for letting us know.

The type or namespace name 'WebForms' does not exist in the namespace 'Microsoft.Reporting' (are you missing an assembly reference?)

I am trying to create a web service that will run an SSRS report and save it to a pdf. To do so, I am using VS 2013. When I try to build the solution I get a number of errors including the following:
The type or namespace name 'WebForms' does not exist in the namespace 'Microsoft.Reporting' (are you missing an assembly reference?)
I checked my references, and I have already added the reference for Microsoft.ReportViewer.WebForms (v 10.0.0.0). Additionally, on top of the file that this error references, I have the following using statement:
using Microsoft.Reporting.WebForms;
Is there anything else I could be missing?
Thanks
Edit: my issue was that I was using a version of .NET that was too old.

Namespace Error -> using com.demo & using System.Collection.Generic

If i want to run my program i get this error messages from this code part:
using System.Collection.Generic;
using com.demo;
Error Message:
The type or namespace name 'com' could not be found (are you missing a using directive or an assembly reference?)
Error Message:The type or namespace name 'Collection' does not exist in the namespace 'System' (are you missing an assembly reference?)
Is there anything to add (references)? If yes what?
Can you help in some way? Thank ahead.

Correct typo
using System.Collections.Generic;
Add reference to the DLL having this namespace first. Then
using com.demo;