Xcode 5.1 unused consts treated as error

Question

Since upgrading to Xcode 5.1 this morning, a C++ library I have included in my project is failing to build due to unused const.

I have Treat Warnings as Errors: NO & Pedantic Warnings: NO

Any ideas?

Edit after request for line!:

const int NPT_SSDP_MAX_LINE_SIZE  = 2048;

full warning is: Shell script Invocation Error Unused variable 'NPT_SSDP_MAX_LINE_SIZE'

added line. Comment this out, and there are others. This is a 3rd party lib, rather not edit it unless necessary. — Nick Hingston, Mar 11 '14 at 10:34

score 4 · Answer 1 · answered Mar 26 '14 at 03:21

4

In my case, the -Werror flag was set in Build Settings, Other Warning Flags. I just removed -Werror.

answered Mar 26 '14 at 03:21

Chris Prince

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score 3 · Accepted Answer · answered Mar 11 '14 at 10:55

3

Do you have any warning about "Validate Project Settings" in your project?. Similar error went away after update to recommended settings and compile again.

answered Mar 11 '14 at 10:55

nnarayann

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Don't get why, but yes this worked! Have linker issues now..but 1 step further, thanks! – Nick Hingston Mar 11 '14 at 11:16
Actually, in addition to this - I needed to set treat warnings as errors to NO on the top level project, not just the relevant target(s) – Nick Hingston Mar 11 '14 at 11:25
Where does the validate project settings button appears? Seems that I keep seeing it occasionally, but not now – Alex Stone Mar 25 '14 at 16:33
@AlexStone It's not a button, it's a warning you can see in the navigator panel. See [image](http://i.imgur.com/HcLsBtY.png) – nnarayann Mar 27 '14 at 10:24

score 2 · Answer 3 · answered Mar 25 '14 at 16:37

In my case this error was caused by a sub-project within the main project having "Treat warnings as errors" set to YES.

To fix:

Go to build settings for your main project or sub-project (search for .xcodeproj to find all subprojects)
type in warnings into search box
Set "treat warnings as errors" to NO

enter image description here

This fixed my issue for xCode 5.1

Xcode 5.1 unused consts treated as error

3 Answers3

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