Xcode warning: “Multiple build commands for output file”

Question

I am getting an error like this:

[WARN]Warning: Multiple build commands for output file /Developer/B/Be/build/Release-iphonesimulator/BB.app/no.png

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Answer 1

another version of this situation can occur when there are duplicates in the Headers build phase.

to fix this …

1. go to your project target
2. choose Build Phases
3. choose the Headers build phase
4. enter the name shown in the warning
5. notice the two (or more) items
6. find the +|- boxes in the lower left corner
7. select one of the items, and click the - button