The sandbox is not in sync with the Podfile.lock-ios
For me, the reason was missign User-Defined variables in the Build Settings! Looking into the issue, the Build Phases tries to diff 2 files. diff “${PODS_PODFILE_DIR_PATH}/Podfile.lock” “${PODS_ROOT}/Manifest.lock” > /dev/null Just because of missing PODS_PODFILE_DIR_PATH and PODS_ROOT variables, assumes them as “” so ${PODS_PODFILE_DIR_PATH}/Podfile.lock points to /Podfile.lock and same for the other one. So it fails … Read more