The warning message has a link to this png file in your .xib or .nib files.
Now the question is how to find it. Xcode does a poor job of this. Opening each nib file in a text editor such as textedit and manual search takes a lot of time.
The best solution for such search tasks is to start the terminal and use the grep command. Go to the source folder of your project in the terminal, then you can run the following in your case:
grep -i -r --include=*.xib "my-icon.png" ./
This will return all * .xib files referenced by my-icon.png. Later, when you see these * .xib files in xcode, you will find '?' instead of mine-icon.png instead of deleting the image is really missing. You have now deleted it to replace it with another image. So choose '?' mark the symbol, open the "Utilities" area (on the right) and select the correct file name. That's all.
Mr.Hunt Jun 26 2018-12-12T00: 00Z
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