topic Re: first test-project in map2027 and vs2027 in .NET Forum

first test-project in map2027 and vs2026

jan_tappenbeck — Fri, 08 May 2026 05:46:28 GMT

Hello!

I'm just getting started with AutoCAD Map 2027 and Visual Studio 2026 (version edit!).

Until now, I've been programming with AutoCAD Map 2024 and Visual Studio 2024.

I watched the following video as a starting point: https://www.youtube.com/watch?v=kPkLqBfSk58

A simple compilation worked when I then used netload.

Now there are two more steps where I’m having trouble.

Point 1

The output should go to the AutoCAD BIN directory, as before. Currently, however, it’s always being output to the project directory.

C:\\VSProjects\\2027_Sandbox\\HalloNet10\\HalloNet10\\bin\\Debug\\net10.0-windows

Even when I specify the BIN directory in the Compile Settings, it still attempts to install to another subdirectory named “net10.0-windows.”

Point 2

A class library cannot be launched directly. To do so, I am prompted to add an executable project to the solution. However, I no longer remember how to do this. The video (13 min.) explains that you should create a Properties/LaunchSettings.json file and then populate it with the appropriate content.

{ "profiles": { "AutoCAD Debugging": { "commandName": "Executable", "executablePath": "C:\\Program Files\\Autodesk\\AutoCAD 2027\\acad.exe", "commandLineArgs": "", "workingDirectory": "C:\\VSProjects\\2027_Sandbox\\HalloNet10\\HalloNet10\\bin\\Debug\\net10.0-windows" } } }

I did that. But when I run it, the error message still appears.

Can anyone help me?

Regards, Jan

Translated with DeepL.com (free version)

Re: first test-project in map2007 and vs2027

BlackBox_ — Thu, 07 May 2026 15:47:54 GMT

This may help:

https://forums.autodesk.com/t5/net-forum/migration-guide-net-framework-to-autocad-2025-net-8-0/td-p/12676274

Re: first test-project in map2027 and vs2027

ActivistInvestor — Thu, 07 May 2026 19:42:49 GMT

Post your project's .csproj file for more help with specifying output paths.

For your launchSettings.json, this example assumes that acad.exe is located in "C:\Program Files\Autodesk\AutoCAD 2027". Adjust as needed.

{ "profiles": { "AutoCAD 2027 (.NET 10.0)": { "framework": "net10.0-windows", "commandName": "Executable", "executablePath": ".\\acad.exe", "commandLineArgs": "/nologo", "workingDirectory": "C:\\Program Files\\Autodesk\\AutoCAD 2027" }}

Re: first test-project in map2027 and vs2027

kerry_w_brown — Thu, 07 May 2026 21:55:50 GMT

@jan_tappenbeck wrote:
Hello!

I'm just getting started with AutoCAD Map 2027 and Visual Studio 2027.
< snip>

I assume you mean Visual Studio 2026 not 2027.
I believe 2027 will be released in November ??

Stay well,

Re: first test-project in map2027 and vs2027

jan_tappenbeck — Fri, 08 May 2026 05:45:02 GMT

Dear kdub,

sorry, my mistake - visual studio 2026 is correct.

regards Jan

Re: first test-project in map2027 and vs2026

_gile — Fri, 08 May 2026 21:50:08 GMT

Hi,

Maybe you can get some inspiration from this project template (AutoCAD R25 Csharp Plugin Template).

Betreff: first test-project in map2027 and vs2026

jan_tappenbeck — Mon, 11 May 2026 04:17:33 GMT

Hi Gilles,

thanks for answer, but i neet vb.net an R26.0!

regards Jan

Betreff: first test-project in map2027 and vs2026

_gile — Mon, 11 May 2026 05:48:28 GMT

@jan_tappenbeck

You've already been advised several times to switch to C# (VB is practically obsolete).

In any case, my suggestion that you take inspiration from this template has nothing to do with the language used.

Pay attention to the AutocadR25Plugin.csproj file (project SDK), LaunchSettings.json and start.scr files.
In the project SDK, the only differences with a R26 one are the TargetFramework, the referenced AutoCAD libraries and the acad.exe version.
This file shows how to avoid the targeted framework in the output path by setting AppendTargetFrameworkToOutputPath to false.

The Properties\LaunchSettings.json "commandLineArgs" and the use of a script file (start.scr), with the complete path of the output DLL, allows to automatically start AutoCAD and netload the assembly when starting debug.

Betreff: first test-project in map2027 and vs2026

ActivistInvestor — Tue, 12 May 2026 00:25:14 GMT

You need to forget about VB and switch to C# because Microsoft is no longer updating VB to work with newer framework features. IOW, there are now things that you can do with C# that you cannot do with VB.NET.

For example, with C# you can use multi-targeting to generate multiple builds that Target different AutoCAD and .NET releases within a single project.

You can find an example of using multi-targeting with AutoCAD C# projects in this Repository