Not able to debug c++ code on visual studio 2022

Gaurav Sharma 0

I am developing android application using c# and c++. my application uses c++ library. whenever I select c++ debugger in android project properties window and i run my app in debug then I get an error which is attached as image to this question. I already installed cross-platform development workload in visual studio set-up and also I added a registry key in registry editor with NDK_HOME key and value. even after this, visual studio is not able to find NDK_HOME registry key. please help me to resolve it.

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1 answer

Tianyu Sun-MSFT 30,831 Reputation points Microsoft Vendor

2024-10-09T07:51:44.5666667+00:00
Hello @Gaurav Sharma,

Welcome to Microsoft Q&A forum.

I tried to reproduce this issue but failed. Perhaps you can try/double check following:

Tools > Options > Cross Platform > C++ > Android > Android NDK.

Install NDK manually(Tools > Android > Android SDK Manager > switch to Tools tab > NDK).

Reinstall related Workloads and components from VS Installer > Modify.

Is there any special or specific setting in your solution? Is this Android application developed by using VS 2022? If not, will the same issue appear in previous version of VS, for example VS 2019/2017(if it's possible, you can try to install previous version of VS just for test. It's useful for narrowing down this issue)?

Best Regards,

Tianyu

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Gaurav Sharma 0 Reputation points

2024-10-09T11:35:19.0733333+00:00

No it does not solve the problem still it gives same error. I tried following Visual Studio 2022 professional version.

17.11.5

17.11.1

17.7

17.8.15

Windows version : Windows 11 Enterprise

My app is based on .Net8-android c# project which builds a c++ dynamic library(that is .so file).

all the sdk,ndk,jdk paths are correcltly configured in Tools > Options > Cross Platform > C++ > Android. that's why VS is able to build and load the c++ dynamic library but when I select c++ debugger to debug my c++ library then it gives registry error.

It can be reproduced easily by following steps.

Create new project File->New->Project->.Net Maui App

Go to your project properties->Android->options-> Debugger and select c++.

Now run your project by clicking on your connected android device(in my case,it is Samsung SM-T875(Android 13.0-API 33)).

now after deployement your apk to your device, you should get the registy error.

Tianyu Sun-MSFT 30,831 Reputation points Microsoft Vendor

2024-10-10T03:15:31.6466667+00:00

Hello @Gaurav Sharma,

Thank you for sharing us detailed reproducible steps.

I am currently using a VM to test, so fail to reproduce it when I go to step 3(can’t use Android Emulator).

I forgot to mention that if you try to set the NDK_HOME in system environment variable(not Registry, you can search and open Edit the system environment variables in Windows Search box), will it work?

Gaurav Sharma 0 Reputation points

2024-10-10T04:35:52.7733333+00:00

Hi @Tianyu Sun-MSFT

No it does not work. I already tried this. see it is already set in my system variables.

also see I added same in registry editor like below image.

this is in HKEY_CURRENT_USER:

and this is in HKEY_LOCAL_MACHINE

nothing helps to fix it.

Tianyu Sun-MSFT 30,831 Reputation points Microsoft Vendor

2024-10-10T07:03:10.9833333+00:00

@Gaurav Sharma, did you reboot your machine after you set the Registry and the system environment variables?

Gaurav Sharma 0 Reputation points

2024-10-10T07:31:39.46+00:00

yes everytime whenever I set the registry or system environment. after doing all these troubleshooting , then only I posted question here.

Tianyu Sun-MSFT 30,831 Reputation points Microsoft Vendor

2024-10-11T02:33:53.1833333+00:00

Hi @Gaurav Sharma,

I got chance to test again. I got this error:

Unable to start debugging. Could not load file or assembly ‘libadb, Version=14.0.0.0, Culture=neutral, PublicKeyToken=xxxxxx’ or one of its dependencies. The system cannot find the file specified.

Not the same error as yours, but I think VS correctly detected NDK on my side, and this error is related to choosing C++ debugger(not .NET Xamarin debugger) to run MAUI project.

I still doubt that there’s something wrong in the system environment.

Did you also try following when troubleshooting?

Reset VS settings(run devenv /ResetSettings in Developer Command Prompt for VS 2022) and repair VS(VS Installer, More, Repair).

Reinstall workloads(.NET Multi-platform App UI development).

Reinstall VS if possible.

Gaurav Sharma 0 Reputation points

2024-10-14T09:26:40.5766667+00:00

yes I tried. can you please try .Net Android template in visual studio? does it work? do you have any NDK_HOME registry key in your registry editor?

Tianyu Sun-MSFT 30,831 Reputation points Microsoft Vendor

2024-10-15T08:05:21.74+00:00

Hi @Gaurav Sharma,

Sure. Before, I followed the steps you shared to create a ".NET MAUI App", currently, I test "Android Application"(if you mean other project templates, feel free to let me know).

See following screenshots:

The NDK_HOME variable(environment variable) was correctly set(automatically set, I didn't set it manually).

Checked by using Registry Editor as well, didn't find the corresponding registry key.
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