ios - Xcode 4.5：合并两个静态库，，，权限被拒绝

Question

我正在尝试将静态库合并到一个库中。

这是脚本：

rm -rf ${BUILT_PRODUCTS_DIR}/libAggregate.a

lipo -create "${BUILT_PRODUCTS_DIR}/../${CONFIGURATION}-iphonesimulator/libStatic Library.a"
"${BUILT_PRODUCTS_DIR}/libStatic Library Device.a" -output "${BUILT_PRODUCTS_DIR}/libAggregate.a"

但我收到了这个错误

/Users/Me/Library/Developer/Xcode/DerivedData/Static_Library-bcdrrwpqmxtbqghkamlqbrgjkmfi/Build/Products/Release-iphoneos/libStatic Library Device.a：权限被拒绝

如何解决？