When xcode runs on a real machine, the following error occurs: while reading XX/backgroundhomescreen_5.png pngcrush caught libpng error:

From: http://blog.csdn.net/shencaifeixia1/article/details/8976756

Error reported when xcode runs on a real machine

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1. While reading/users/yangeric/MIOs/meitu/image/backgroundhomescreen_5.png pngcrush caught libpng error:

The reason is that the prompt PNG is not a PNG in PS, but a PNG extension is manually modified. No error is reported on the simulator, but on the real machine, this so-called "PNG" image is not recognized.

Solution:

Use PS to re-export PNG.

Attached Error Log:

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1. (Null): While reading/users/yangeric/MIOs/meitu/image/backgroundhomescreen_5.png pngcrush caught libpng error:
2. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-plugin/build/products/debug-iphoneos/meitu. APP/backgroundhomescreen_5.png
3. Command/applications/xcode. APP/contents/developer/platforms/iphoneos. Platform/developer/usr/bin/copypng emitted errors but did not return a nonzero exit code to indicate failure
4. (Null): While reading/users/yangeric/MIOs/meitu/image/BackgroundHomeScreen@2x.png pngcrush caught libpng error:
5. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-axtpdkzrafpqwueeqfkdldtmiyjn/build/products/debug-iphoneos/meitu. app
6. (Null): While reading/users/yangeric/MIOs/meitu/image/BackgroundHomeScreen_5@2x.png pngcrush caught libpng error:
7. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-axtpdkzrafpqwueeqfkdldtmiyjn/build/products/debug-iphoneos/meitu. app
8. (Null): While reading/users/yangeric/MIOs/meitu/image/backgroundhomescreen.png pngcrush caught libpng error:
9. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-plugin/build/products/debug-iphoneos/meitu. APP/backgroundhomescreen.png
10. (Null): While reading/users/yangeric/MIOs/meitu/image/backgroundlockscreen_5.png pngcrush caught libpng error:
11. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-plugin/build/products/debug-iphoneos/meitu. APP/backgroundlockscreen_5.png
12. (Null): While reading/users/yangeric/MIOs/meitu/image/BackgroundLockScreen_5@2x.png pngcrush caught libpng error:
13. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-axtpdkzrafpqwueeqfkdldtmiyjn/build/products/debug-iphoneos/meitu. app
14. (Null): While reading/users/yangeric/MIOs/meitu/image/backgroundlockscreen.png pngcrush caught libpng error:
15. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-plugin/build/products/debug-iphoneos/meitu. APP/backgroundlockscreen.png
16. (Null): While reading/users/yangeric/MIOs/meitu/image/BackgroundLockScreen@2x.png pngcrush caught libpng error:
17. (Null): cocould not find file:/users/yangeric/library/developer/xcode/deriveddata/meitu-axtpdkzrafpqwueeqfkdldtmiyjn/build/products/debug-iphoneos/meitu. app