iPhone - following -L not found

I am trying to modify an old app and when I build it gives me the following 2 warnings:

ld: warning开发者_C百科: directory '/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/usr/lib' following -L not found

and

ld: warning: directory '/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/lib' following -L not found

Anyone knows where this comes from?

I am using xCode 3.2.5

Well, if the text of the error message is to be believed:

ld: warning: directory [...] not found

...it says that a directory was not found. If you google for compiler flags, you'll see that -L is for specifying additional library search path directories. So the directory it mentions in the error doesn't exist.

You need to look in the project settings somewhere where the given folder is specified -- it will need updating to the current directory for the current version of the SDK you have.