Two of my students in the same group project had the Mach-O linker error but under different circumstances, maybe you can help with this as well. The first student who used the project template and installed Backendless using Cocoapods had no problems. When the second student tried to download the project folder onto his computer and build in Xcode, he got the linker error.
BUT, when the second student ran “pod deintegrate” and “pod install” for him, the error goes away but then the first student has the same error! There must be something strange going on with file permissions, but I haven’t been able to figure it out. Can you possibly help with some ideas about what to try or to test?