Unity crashed and corrupted a huge .cs script.

Question

The problem: I have a corrupted script that shows up blank in MonoDevelop, and a bunch of nulls in Notepad++. alt text

What I have tried: I've tried version history, but I don't think my file has that. I've searched for how to de-compile a unity project (I have a recent build) to retrieve my script, but none of that has worked yet.

Answer 1

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Answer by PictonicStudio · Sep 14, 2013 at 12:12 PM

So I found the answer. And I hope I help someone on their quest.

You need to download this software http://ilspy.net/ (click download binary)
Once installed and opened click File->Open
Navigate to MyBuildFolder/MyBuild_Data/Managed and open Assembly-CSharp.dll and Assembly-UnityScript.dll
Click the search icon on the top and search for your script name. And viola it should be there.

Hope that helped, peace.

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DannyB · Sep 14, 2013 at 12:22 PM 0

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You should at least upvote the answer by @ArkaneX who helped you "find" it...

ArkaneX · Sep 14, 2013 at 12:54 PM 0

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@DannyB - thanks :)

Bunny83 · Sep 14, 2013 at 01:27 PM 0

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Actually he posted his own answer at 11:19 and ArkaneX at 11:59. His answer was stuck in the moderation queue. Anyways both answers are correct, so don't forget to simply upvote correct answers / good questions.

ArkaneX · Sep 14, 2013 at 01:47 PM 0

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@Bunny83 - thank you for this information!

PictonicStudio · Sep 14, 2013 at 02:05 PM 0

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Yeah I found the answer like 5 minutes after I posted the question. That typically happens :p

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Answer 2

Answer by ArkaneX · Sep 14, 2013 at 11:59 AM

If you have a recent build, then you can decompile it. Here's a short info how to do it on Windows.

After building a project, you have an exe file, let's name it MyGame.exe, and folder MyGame_Data. Inside this folder there's subfolder Managed, containing the compiled Unity assemblies. Those interesting you are:

C#: Assembly-CSharp.dll, Assembly-CSharp-firstpass.dll

JS: Assembly-UnityScript.dll, Assembly-UnityScript-firstpass.dll

Your code is most probably inside an assembly without firstpass in its name.

To decompile, download any .NET decompiler. I suggest free ILSpy or trial version of .NET Reflector. After opening decompiler, drag the assembly and just browse to desired file. If your class was contained within namespace, then it will be accessible under this namespace. In other case, it should be under empty namespace (minus sign). Clicking the class should open it in disassembled form, though if I remember, in .NET Reflector you have to double click it or right click and select Disassemble.

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PictonicStudio · Sep 14, 2013 at 02:10 PM 0

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Thank you for this, even though I found the same answer :)

ArkaneX · Sep 14, 2013 at 02:17 PM 0

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I'm glad you were able to recover content of your file :)

Hsni · Mar 08, 2019 at 07:45 AM 0

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For Windows (simplest way):

Open ILSpy.
Browse to Project folder.
In file manager, search managed.
Open it, there you'll find Assembly-CSharp.dll. Double click it.
Now in ILSpy, search for your corrupted script (After you click the assembly in left pane).
Code of the corrupted file will be there in lower pane. Copy and paste it in file that was corrupted in project.

Answer 3

Answer by moghazy · Apr 06, 2014 at 01:07 PM

If you have a corrupted scripts only and you don't have a building project this is the solution which is similar to PictonicStudio solution:

Download this software **http://ilspy.net/** (click download binary)
Once installed and opened click File->Open
Open Assembly-CSharp.dll on the root folder of your project.
Congrats! your scripts is here now :)

I just faced this issue and i hope if it will help you too.

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PictonicStudio · May 07, 2015 at 07:41 PM 0

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Cool! nice to know!

Bunny83 · Jul 28, 2015 at 11:04 AM 1

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Actually i can't remember that the assemblies are compiled into the project root. In all my projects (even the old ones) the assemblies that the editor creates internally are inside the library folder at:

 *PROJECTROOT*\Library\ScriptAssemblies\

I literally searched my harddrives for "Assembly-CSharp.dll" and only fould then in build folders or in the "ScriptAssemblies" folder.

I have found about 200 assemblies ^^. I probably should clean up my harddrives but usually when i run out of space i just buy a new one. One day i'll run out of drive letters i guess.

aleichert · Apr 06, 2016 at 03:18 PM 0

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My god! The main script of my project on which everything was dependent on had gotten corrupted after my laptop crashed while saving. If it weren't for you I'd have to go through ages of coding again. Thank you! :)

Dave-Carlile aleichert · Apr 06, 2016 at 03:23 PM 0

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The other advice given early on still applies. Source Control. Backups.

aleichert Dave-Carlile · Apr 06, 2016 at 03:57 PM 0

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I make several backups regularly and I was just about to make one again after having finished that giant script, but then it crashed. I will look into the version control, sounds like it's a good thing to have.

hitarthdoc1994 · Jun 06, 2016 at 08:03 AM 0

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Don't Recompile/Re - import the Script else You would not be able to Get back the File. That is what I did and I had to write the whole Script Again.

Answer 4

Answer by Xeonce · Jun 22, 2016 at 05:59 AM

Big, big Thanks to you!!

You have saved me from over 30 hours of work, cause i have deleted all my original scripts by mistake, without backup, and on a ssd..

I have tried a backup tool, but this also has failed.

Without you i were not so happy in this moment as i am now. :-)

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Unity crashed and corrupted a huge .cs script.

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