Database disk image is malformed

So the other day I was importing an assetpack and suddenly started getting this error:

"Fatal Error!:
Database disk image is malformed
UnityEditor.DockArea:OnGUI()"

Now I can't import anything else because I keep getting the same error and can't even delete any of the files I have because the error won't let me and unity crashes before the files can be deleted.

Help would be appreciated!

 

Anyone? Please... :/

 

Really not sure but you can try deleting your Library folder (which stores cached versions of assets).

 

If anyone's wondering, I fixed this by simply copying my assets and pasting them into a fresh project.

 

I can verify the same error message appearing whenever I attempted to do a build. Deleting & rebuilding the Library did do the trick. Using 4.6.1f1.

 

My case: I suddenly started getting the fatal error when I tried opening my project.
"Fatal Error!:
Database disk image is malformed"

I realized that it was crashing while loading some of the shaders. In the library folder it maintains CrashedAssetImports where it keeps a not of what file caused the crash. I found that it was all shaders. I tried deleting the assetDatabase3 file in the library file (which probably is a guide for all the assets that Unity registered for the project). on the next launch it rebuilt the assetDatabase3 afresh. However, the error persisted. Finally I deleted the 'Library' folder and that did the trick. On the next launch it recreated the 'Library' folder and successfully launched the project.

 

Hi, I am experiencing the same problem as you. What are you referring to when you say 'Library' Folder? I am confused

 

/Assets
/Library <-- delete this one
/Packages
etc.
...

 

Still seeing this in 2019.3.6. Deleting the library cures it for a while, but it comes back. I also get a bunch of these:

"cannot start a transaction within a transaction"

 

UPDATE: Deleting library doesn't work any more. I get these messages constantly now

 

I got this issue after I created my own database with unity. At the beginning, everything work fine until today, when suddenly my entire code stopped working due to 'Database disk image is malformed'.
I created a new sqlite/database-file, since the original one was somehow corrupted. Depending on how you use databases in your project, this won't work - but if you create your own database, you can try re-creating the file.

 

The problem mysteriously went away, but thanks for the reply.

 

I went to the library folder and looked at the most recently changed files and then deleted just those DB files that had changed. Now it is reimporting the library but seems to have fixed things.