Hi guys, thanks for reading this.
During the phrase of launching, I got the error from the project launcher said : System.ArgumentException: An item with the same key has already been added.
So according to solutions online, here’s what I’ve tried but not work:
- Delete Intermediate, Saved, and Config folders;
- Search Engine folder with .target files if there’s another copy;
- Rename .uproject;
- Checked if there’re plugin installed twice with different version;
- Checked asset’s name;
- Migrate the project to another blank one;
7.Refresh all the nodes in blueprints.
Any idea or solution will be more than appreciated. Thanks!