Project Almost Finished But... "Multiple Commands Produce.."

We're building a mobile wallet and we just completed the code, everything looked ready to run, but then when we went to build and test these errors came up.

Have you encountered this issue before?

what is the solution

Multiple commands produce '/Users/braedonjim/Library/Developer/Xcode/DerivedData/VIPERAv001-doqcjxmmpbqgzhcdicpjodohcajn/Build/Intermediates.noindex/VIPERAv001.build/Debug-iphonesimulator/VIPERAv001.build/Objects-normal/arm64/String+Extension.stringsdata'