[3.4.2] Importing 2.x to 3.4.2 version using importer, editor crashes

[zhefengzhang]

Cocos Creator version

2.4.6、3.4.2

System information

windows

Issue description

The user has a large amount of project resources, about 60,000 resources. Every time we use the importer to import the project from version 2.x to version 3.4.2, it crashes. After talking with our editor colleague @arsen2010, we confirmed that the editor crashes after taking up too much memory.

Relevant error log output

No response

Steps to reproduce

Use the 2.x import tool in CocosCreator version 3.4.2 to import 2.x projects into new projects in CocosCreator version 3.4.2.

Minimal reproduction project

You can find @arsen2010

[jareguo]

It feels like when importing, we can't import too many at once, we have to make it in batches

[VisualSJ]

The problem has been solved

[zhefengzhang]

crash.zip

[VisualSJ]

I tried several machines and found one machine that crashed when 5W resources were imported at a time, and the impact area was small. Therefore, lower the priority

[VisualSJ]

The problem has been dealt with