The property database "Library/Search/propertyDatabase.db" is already opened.

Lately I've been getting this error when I exit play mode. Does anyone know how to fix it? Deleting the Library folder didn't work.

 

Perhaps some antivirus solution scanning it?

 

I have this as well. Every time I edit any property,

The property database "Library/Search/propertyDatabase.db" is already opened.
UnityEditor.EditorApplication:Internal_InvokeTickEvents ()

The property database "Library/Search/propertyAliases.db" is already opened.
UnityEditor.EditorApplication:Internal_InvokeTickEvents ()

Very annoying

EDIT: Nvm, found out there were stray Unitys open for some reason

 

Was hoping this was the fix but I only have one instance of Unity open

 

Then try reboot your computer... there might be sooper-seekrit headless processes that Unity fires off holding onto this.

 

It seems to come back no matter what I do

 

That worked. Thanks.

Had my project crash a few times, which left some of these files hanging around.

 

works thank you

 

I have deleted the PropertyDatabase_xxxxx files and temporarily solves the problem. However the files quickly come back after regular usage and the errors resume.

 

I had this issue due to a hanging unity process in the Task Manager - so check if you have one as well and then close it completely.

 

I suspect the reason for this was my constant forceful shutdowns of Unity when it hangs. It seems that if the Unity editor is not in focus, it has a higher chance of hanging while reloading, importing, etc. Bit of a pain to be unable to switch to another window while Unity works.

 

Thanks to Sebastian - this tip fixed my errors well.

 

I also had this issue, due to me having to force-close Unity earlier and some process got stuck.

Ending the zombie process and deleting Temp folder fixed it.

 

I have this problem on 2021.3.5f1 LTS as well

 

One up from me too, issue seems to be related to me shutting down the Unity Editor from the Task Manager after becoming non responsive. Restarting the editor or the system has no effect. Deleting the files with name starting with "PropertyDatabase_" with the Editor is closed worked just fine.

 

Same problem here. Any news on a fix?

 

This solved my issue. Thank you.

 

you got it thank you

 

I have just removed those files, but have the same issue when starting again. Using Unity 2021.3.7f1.

 

TJHeuvel-net you may have a Unity process running in the background that has an open file handle pointing to one or more of those files (that you've deleted from the filesystem). Close both the Unity Editor, and also Unity Hub. Then if you're on Windows open up the Task Manager and look for Unity processes that are still running; make sure you check under Background processes.

I had the same issue, ie closed out Unity Editor, deleted the files, restarted it, continued getting the message(s) about the .db files being open. I then closed out the editor, the hub, and also killed off lingering Unity Hub processes I found via the Task Manager. That fixed the problem for me, and seemed to indicate there was a process that was holding on to the file handles for the deleted files.

 

We've run into this issue once as well after having to force close the Editor to get out of an infinite loop. Perhaps a solution would be for the Editor to automatically delete any existing property database lock files when the Editor first opens? The Editor doesn't let us open multiple copies of a single project at the same time, so there shouldn't be any risk of opening a second instance of the same project and having it wipe the lock files from the first instance.

 

I have the same problem, it keeps coming back each time i try to bake the light maps. now the light maps wont bake at all.

 

Same issue here, using Plastic SCM application is a workaround

 

Just started having this problem as well. 2021.3.8f1 Will try deleting those lock files. But this started happening in a project which was fine. All I did was add a new scene and this started. It's a android build, vr project. Haven't had any crashes.

 

I came across this problem today and it seemed to begin appearing when my editor was running the game but hung and I had to terminate it with task manager. deleting the two files fixed it. I am using 2022.1.14f1. thanks for the fix, sebastiengrenier.

 

I am now having this issue for the first time. First time I attempted to use TextMeshPro and is the first time I have seen this. I looked for a temp folder and the other files you mentioned with unity open and closed. I see no temp folder or those files? I looked in C:\Program files unity\Unity 2021.3.7f1 which is the version I am using. Am I looking in the right place? Other two folders are just for the Hub.

OK, tested this. I deleted the textmeshpro object in unity and after one run, errors disappeared. I then added it back and errors again immediately appeared. Obviously, this error is being created by textmeshpro. I also could not drag the text object into the field in the inspector. No way to do that even though a tutorial I am following does it just fine?

I would like to know how to use it though because yes, I want to display some text on screen. I assign the text in the editor in update (time of day) and nothing happens. Could this be because of the error? U uninstalled and reinstalled TextMeshProp using package manager and same thing Version 3.0.6 - April 22, 2021

The code called from Update()

private void UpdateTimeOfDay()
{
currentTime = currentTime.AddSeconds(Time.deltaTime * timeMultiplyer);

if(timeText != null)
{
timeText.text = currentTime.ToString("HH:mm");
}
}

 

Works even with Unity opened but requires scripts to be recompiled.

 

Any Update on this issue?

 

yeah this is super annoying. Happens to me when changing fields in a scriptable object instance. 2021.3.9f1 LTS

 

Thanks a lot. It Worked!

 

Open Task Manager and under background processes, end the unity editor process. This is what worked for me.

 

If you haven't opened Unity twice, open the task manager and close the Unity editor in the background process.

 

I started to have this problem after programs crashed due to the overload which was the result of not properly designed code (smth like infinite loop)

 

That works. Thank you

 

heck yea that fixed it! thanks random person, also cheers @orville_redenbacher for opening the thread!

 

I had opened another project instead of the current project and that project will be also stored in a temp file, I figure out that maybe that's my problem so I delete the temp folder project and also deleted that library file also then restart the current project now the error will disappear

 

I am still on 2021.3.5f1 so I haven't confirmed the latest version properly fixes my issue with this. However, I do know that I never saw it before adding a (relatively complex) OnValidate function to one of my MonoBehaviours. Now that I have a lot of code running after a compile, it seems to happen every time one of my OnValidate calls modifies an object inside that call. I also have Parallel Import enabled, so it might be multiple threads all trying to save at once.

As soon as I disabled Parallel Import, the errors disappeared.

 

It works thank you!