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Fixed in 2018.3.11f1

Fixed in 2018.3, 2019.1



Found in




Issue ID




Unable to find a corresponding location while using Partial classes/methods when debugging



Reproduction steps:

1. Open "Test" project and "SampleScene" scene
2. Open "TestClass.Partial" in VS
3. In Line 9 add a Breakpoint
4. Attach to Unity
5. Enter Playmode
6. Hover over the Breakpoint
7. Notice an error "The breakpoint will not currently be hit. Unable to find a corresponding location"

Expected Result: Debugging works as expected with Partial classes/methods
Actual Result: While debugging, unable to find a corresponding location while using Partial classes/methods

Fixed in: 2019.2.0a9, 2019.1.0b8, 2018.3.11f1

Reproduced with: 2019.2.0a1, 2019.1.0a14, 2018.3.3f1, 2018.3.0f1, 2018.3.0b7, 2018.3.0b4
Did not reproduce on: 2018.3.0b1, 2018.3.0a1, 2017.4.19f1, 2017.3.0a1

Comments (6)

  1. 125811697640c93662fe4033675c78e1?d=mm


    Aug 03, 2019 07:26

    Hi / Thanks for your content

  2. 67ca0e500374e3ff557dfbb672c572d1?d=mm


    Jul 16, 2019 05:14

    Thank you for providing the information about the post last weekend. I have purchased the information and will give it a try soon. And And And Andبلیط-هواپیما-کرمان By your results, I'm sure I will feel better after doing it!

  3. 0fb95c55bc60f19383f7ae775bcf500e?d=mm


    Jun 21, 2019 01:19

    I hope them people will be more skeptic in things like these that's like something straight out of a sappy story.

  4. 76697702c16590959986c80adca91380?d=mm


    May 08, 2019 13:05

    ShikenNugget's solution worked for me in Visual Studio 2019

    "Go Project Settings -> Player -> Other Settings and set the API Compatibility level to .NET 2.0 (as opposed to .NET 2.0 Subset). Restart Visual Studio, Clean and Rebuild the solution. This got rid of the warnings for me. "

  5. 799da5837578b2129cc7006bbcdb787b?d=mm


    Feb 12, 2019 18:21

    Still in issue in 2018.3.1f1 and it is a regression. Ugh!

  6. 52812772a74d4ea06fe75e51c3ab9bfb?d=mm


    Jan 30, 2019 01:58

    This has been driving me nuts for months. I do use partial classes in my project, but it also happens in ordinary class files, seemingly at random. A whole file will be like this for days or weeks and then suddenly it works again. There's a thread about it here:

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