The folder "Images.xcassets" doesn't exist

Question

When I open the project file in the latest xcode version, I get the error "The folder "Images.xcassets" doesn't exist" in two popups. I have to click OK multiple times to make the popups disappear. I haven't done anything to remove such folders. Does anyone have an idea why I might be getting them?

Update:

I see it in finder and in my project explorer too. The problem still persists.

Answer 1

I used the hotkey combinations for Cleaning the Project and Cleaning the Build Folder. Building again after this did the trick. The problem came up after merging too Git Repository Branches of our Project and trying to build.

Clean Build Folder:

Option + Shift+ Command + K

Clean Project:

Shift + Command + K