Editor freezes more than usual when hitting play.

[axelbau24]

Please fill in the following fields:

Unity editor version: 2019.3.7f1
Firebase Unity SDK version: 6.13.0
Source you installed the SDK (.unitypackage or Unity Package Manager): .unitypackage
Firebase plugins in use (Auth, Database, etc.): FirebaseMessaging.unitypackage
Additional SDKs you are using (Facebook, AdMob, etc.): None
Platform you are using the Unity editor on (Mac, Windows, or Linux): Windows 10
Platform you are targeting (iOS, Android, and/or desktop): Android
Scripting Runtime (Mono, and/or IL2CPP): Tried both

Please describe the issue here:

(Please list the full steps to reproduce the issue. Include device logs, Unity logs, and stack traces if available.)

Everytime i hit play (even on a empty project), Unity takes too long to build, compared to the usual time, this is not practical for me.
Also, when the game starts (the play button becomes blue), the editor completely freezes for a few seconds as if it was compiling the game once again.
Am i doing something wrong ?

To easily reproduce this issue:

• Create a empty 3D project
• Switch to Android Platform in the build settings
• Import FirebaseMessaging.unitypackage from Assets -> Import Package
• After import, a popup shows up to enable Android Auto-Resolution, click "Enable"
• The Unity Packager Manager Resolver window opens, click "Add selected registries"
• Wait until all dependencies update.
• Don't add anything else, and hit "Play"
• You will notice the editor freezing and taking way too long to build.

This problem happens even if you don't have any base code running.
Also, tried adding the google-services.json, but it doesn't do anything in this case.

Please answer the following, if applicable:

Have you been able to reproduce this issue with just the Firebase Unity quickstarts (this GitHub project)?
Yes, the exact same thing happens here, and it feels worse.

What's the issue repro rate? (eg 100%, 1/5 etc)
100%

[patm1987]

Hi @axelbau24 ,

Thanks for your report!

You've done everything right so far, but I've been unable to replicate the issue on my end. Can you tell me if you see any windows, dialogs, &c pop up after the first time you hit play (screenshot them if you like/can)? Do you see anything interesting in your Console window/would you mind sharing your Editor log?

(note that if you don't feel comfortable sharing your Editor log publicly, you can file a bug here and link this issue/say you're trying to add information for this bug).

Is there anything else of interest that you can think of in your setup? Are you using meta files? A version control system other than Git? Is part of your unity project readonly or stored on a synced volume (ex: Dropbox, iCloud, &c)?

I'm checking in with the rest of the team to see if there's anything else we need to verify.

Thanks,
--Patrick

[almosr]

I have similar experiences with Firebase Core and Analytics. If I remove them from the project then everything goes back to normal. I doubt that this would make any difference, but I used External Dependency Manager for Unity (EDM4U) and Unity Package Manager to install the packages.

Nothing is synced in the background for my project, it is a fairly straightforward setup. Code generation is set to .NET 4.x and IL2CPP, but changing the setting to Mono makes no difference.

A similar delay also happens when I switch from my code IDE (JetBrains Rider) to Unity editor, if there was any change on the source code and it is recompiled in the background Unity editor stops responding for a good 15-20 seconds.

I have tried profiling the editor to figure out what is going on. I am no expert on Unity profiling, but as it seems to me when this delay happens then profiler stops capturing anything until the editor starts working again.

Please let me know if there was any other information I could provide.

[almosr]

I have attached the editor log from the moment I press the play button:
editor_log.txt

This line looks rather suspicious to me:

Unloading 534 unused Assets to reduce memory usage. Loaded Objects now: 5522.
Total: 15.606300 ms (FindLiveObjects: 0.836300 ms CreateObjectMapping: 0.170500 ms MarkObjects: 13.140400 ms  DeleteObjects: 1.457900 ms)

Edit: nevermind, I just realised it is msecs. :)

[MateusMP]

I might have the same issue. Looking at the editor profiler, there is at least one entry that seems suspicious to me:

Note that I'm running on Windows 10. I can't say for sure if that XCodeProjectPatcher is related to firebase, but looking through some results on google it seems to be the case. But this seems to be a specific thing for IOS, so why is it running on my windows environment? It seems to be responsible for at least 4s of startup time.

I'm using Firebase 6.13, auth, database and analytics. And google admob.
Running on SSD.

[daksheshpatel]

Exact same issue mentioned by MateusMP. It takes almost 4-5 seconds to enter play mode in the empty project with just Firebase core installed from package manager.

[almosr]

I am running Unity on Windows too, maybe this is an important piece of information.

[axelbau24]

Thank you for your answer @patm1987

Here's my Editor Log Editor.log

Also, noticed some iOS stuff happening, even though i'm just compiling for Android, just like @MateusMP did, In my case i don't see anything related to XCode, just the iOS resolver (which i don't think it should be there and also taking a long time to compile.

Is there any way to disable this iOS resolver?

EDIT: This was a completely empty project stored on my PC, no version control or cloud were used.

[GorillaOne]

I'm having a similar symptom (8 second slowdown right after entering playmode). Platform is set to Android. Same Unity and SDK version as original poster. I have also tried disabling all auto-resolve functions in the package, but this seems to get called no matter what. This is a critical issue.

Using Google Analytics for Firebase, Firebase Core, and Firebase Cloud Messaging.

[leni8ec]

I have the same issue.
Freezes at 10-15 seconds on press play button.

Unity 2019.2.21, Firebase 6.12.0 and 6.13.0