Hololens: no debug output in Visual Studio 2017

Question

My task is very simple, I put in the Main method two lines:

Debug.Log("App START Debug.Log");
Debug.unityLogger.Log("App", "START Debug.unityLogger.Log");

and want to see these logs in the output if the app is running. If I set the run option as Releasethe app starts, but I don't see these logs. If I set the run option as Debug and try to start, I get an error popup:

Unable to activate Windows Store app ´Template3D_pzq3xp76mxafg!App´

and the app doesn't start at all.

EDIT: according to comment of @Perazim, I have also tried:

System.Diagnostics.Debug.WriteLine("App START Debug.Log");

No effect in Release and Debug mode.

EDIT 2:

System.Diagnostics.Debug.WriteLine("App START Debug.Log");

works, if I put it in other methods, but doesn't work in the Main() method.

Have you tried [turning it off and on again](https://stackoverflow.com/a/13405577/1997232)? — Sinatr, Apr 05 '19 at 13:53

score 0 · Answer 1 · answered Apr 25 '19 at 13:24

0

Debugger.Log for the output to debugger. Debug.WriteLine prints to listeners. If there is no listeners, it will not work.

answered Apr 25 '19 at 13:24

Tania Chistyakova

3,928
6
13

score 0 · Answer 2 · edited Apr 30 '19 at 16:16

My application stopped writing output to the output window with the System.Diagnostics.Debug.Writeline in debug mode. This all happened after the latest Microsoft Updates.

I created a new application just to see if it was my current application, and the new application would not write to the output window either.

Then I decided to right click on the Output Pane in Visual Studio and what do I see, Program Output unchecked.

Program Output Unchecked

I checked this and my Debug.Writeline works again.

score -1 · Answer 3 · edited Apr 09 '19 at 12:45

-1

In unity you can use/see debug.log(); in Visual Studio you need to use Console.WriteLine();

edited Apr 09 '19 at 12:45

Mehul Kabaria

6,404
4
25
50

answered Apr 05 '19 at 14:20

Perazim

1,501
3
19
42

Then I get error: `The name 'Console' does not exist in the current context` – Alexander Tumanin Apr 05 '19 at 14:26
no effect with `System.Diagnostics.Debug.WriteLine()` – Alexander Tumanin Apr 09 '19 at 09:54

Hololens: no debug output in Visual Studio 2017

3 Answers3