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Question by MagicStyle · Nov 05, 2017 at 04:29 PM · unity 5visual studiodebugging

Unity3d - Attach to Unity not working

I need to debug my scripts, but if I click "Attach to Unity" or "Attach to Unity and Play" then the button is just grayed out and after a few seconds it is clickable again, but nothing happens.

Attach to Unity and Play (green arrow)

Attach to Unity and Play (gray arrow)

Attach to Unity and Play (green arrow)

I already restarted the computer but It does not work.

I even updated visual studio, did not worked.

I deleted the folder "obj" in my project, did not worked.

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Answer by MagicStyle · Nov 06, 2017 at 09:43 AM

Today after I started my computer, it works again. Maybe we have to shutdown the computer for a while, so that the RAM is getting cleared completly, maybe there was still vs junk in the RAM after restart which was causing the problem?

EDIT: Now the problem appeared again, after I set a breakpoint in a set method and then pressed on "Attach to Unity and Play"... HINT: I bet this is an important hint for the developers: it worked perfectly fine but then I had to force quit unity via task manager because I created an infinite loop and unity was freezed. Since then I am unable to attach to unity

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Answer by binoy92 · Nov 07, 2018 at 07:06 PM

alt text

Make sure your Unity preferences->External tools are as shown in the pic. Ignore android settings.


ans.png (29.6 kB)
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Answer by i_nazarov · Apr 12, 2021 at 08:24 AM

Had the same symptoms after windows crash and reboot. I tried to close VS and editor, then started editor and opened script via editor and it helped.

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