I am using a previous app but getting error in UIResponder.h

Question

I am using a app of previous developer ,but when i compile it ,ig shows 5 errors at UIResponder.h and UIEvent.h

error 1:

file/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIEvent.h:38:0 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIEvent.h:38: error: expected ':' before ';' token

error2:

/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:15:0 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:15: error: expected ')' before 'UIResponder'

error 3:

/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:17:0 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:17: error: expected '{' before '-' token

error4:

/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:42:0 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:42: warning: '@end' must appear in an @implementation context

error5:

/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:58:0 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIResponder.h:58: error: cannot find interface declaration for 'UIResponder'

Answer 1

Once check in which version of iPhone OS you are installing your App. Once check the targets and change the base sdk and deployment sdk as required.

Answer 2

Try by removing all the linked frameworks and link from your library.

Answer 3

Remove all the frameworks used in the application. Add back all the frameworks and do a clean build of the application. This might help.