Xcode: issue “file xxx.png is missing from working copy” at project building

Question

After deleting/adding some png files to project, i have got messages when building project.

\"file ProjectPath\\aaa\\xxx.png is missing from working copy.\"

Answer 1

For me the following worked:

Since I do not and did never use Git, I created a new project (XCode 8, I could not see the usual "use Git" or however the checkmark was labeled). Then I bluntly deleted all the files in this new project; went to the old messed up project, copied everything in the project folder, came back to the newly created project, pasted the old stuff, opened that - all the warnings about files that have not been existing for months are gone. Fingers crossed.