Question Unhandled Exception: System.InvalidOperationException: Can't find file \\.\pipe\unity-ilpp

trying to create a 3D URP project and I get this error.

Unhandled Exception: System.InvalidOperationException: Can't find file \\.\pipe\unity-ilpp-6acb8486a5f673b065859650217279da
at Unity.ILPP.Trigger.TriggerApp.WaitForFileExists(String, TimeSpan) + 0x166
at Unity.ILPP.Trigger.TriggerApp.CreateClient(Arguments) + 0x23
at Unity.ILPP.Trigger.TriggerApp.<ProcessArgumentsAsync>d__1.MoveNext() + 0x706
--- End of stack trace from previous location ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x20
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task) + 0xb6
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task) + 0x42
at Unity.ILPP.Trigger.TriggerApp.<RunAsync>d__0.MoveNext() + 0xc7
--- End of stack trace from previous location ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() + 0x20
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task) + 0xb6
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task) + 0x42
at Program.<<Main>$>d__0.MoveNext() + 0x1a3
---

 

I just tried creating the same project with the 2021 LTS and it is fine. so it is something in the 2022 builds that is causing the issue.

 

I'm also facing the same problem. Reimporting the "Core RP Library" fixes it for some reason. Maybe it's got something to do with the package?

 

Same issue, tried re-importing but no luck

 

I had this problem when opening a previously created 3D URP project that was working fine. Unity suggested going into safe mode, which I did. I then updated an unrelated package (Timeline) and that got the project compiling again. Random glitch? Perhaps anything that causes a rebuild will fix it?

 

This solved the problem for me. Thanks a lot!

 

This also solved the problem for me. Thank you ^__^

 

This saved my project. Thank you

 

Had the same problem. Solved it by deleting Timeline in Safe Mode and installing again.

 

How to solve this error if it doesn't work for me by uninstalling and reinstalling Timeline in safe mode

 

I wrote a new script, and it fixed the problem. It seems like it probably gets stuck, and you either have to install an asset or create a script, and it will fix itself.

 

Thank you so much for the tip and creating a new script, save, then build! It worked!

 

You my friend have saved me. Ty.

 

For those who got this bug, you have to erase/reinstall the Timeline package - and if it does not work (like for me), erase/reinstall the Universal RP package. Thanks for your help ++

 

None of these worked for me unfortunately.

 

None of these work for me
Unity 2022.3.12f1, URP 14.0.9

 

To solve this problem, Follow these steps, worked for me

Go to package manager > remove Universal RP > ReInstall Universal RP > and then Asset > Reimport all > clear Console > Build apk
try this.

 

New
To solve this problem, Follow these steps, worked for me

Go to package manager > remove Universal RP > ReInstall Universal RP > and then Asset > Reimport all > clear Console > Build apk

Please sir, try this

 

All of a sudden I got this problem, I didn't do anything to the project, I closed and opened Unity and I got this problem, I deleted and installed Timeline many times. Universal RP is not in my project anyway, I also opened a new project and I get this problem in the new empty Unity project. The version I am using is Unity 2022.3.10 can anyone help

 

Same issue here! Unity fix your bugs asap!!!

 

Experiencing the same issue, reimporting updating timeline just gets stuck at "ScriptCompilation ILPP-Configuration ilpp-configuration".
Issue appeared out of nowhere. Tried deleting the whole project and pulling from git again - still the same issue even though at that point all packages were reinstalled.

I removed all the cache from `AppData/Local/Unity/Editor` and installed the newest version of 2022.3 LTS (at the time of writing it's 2022.3.16f1).
After that the project loading gets stuck at "Open Project: Initial Asset Database Refresh".
The following error is logged in the Editor.log file:

 

Okay seems like copy pasting Library folders to reduce time compiling is not the best thing to do lol, deleting fixed the issue for anyone who gets the thing above in some way or another.
Also I was running low on space, so maybe that was the cause.
Anyway it's all good now.

For anyone who gets this, I would recommend
1. Delete library folder
2. Delete AppData/Local/Unity/Cache
3. Delete AppData/Roaming/Unity/Cache
4. Delete AppData/LocalLow/Unity/Cache
5. Reinstall Unity version (delete + reinstall)
6. Make sure you have enough space on disk (more than 20% so that Windows is not showing the disk in Red)
7. Pray to the silicon god
8. Clean solution files in your project folder
9. ???