iOS build errors from missing libraries

I'm building for iOS on Unity Cloud and my game uses the Reign Ultimate Unified API plugin. It's getting build errors when building the xcode project. The plugin's developer says I need to add compile link options "-all_load" and "-ObjC" in the xcode project to include all the iOS libraries.

How do I do this when building with Unity Cloud?

I'm guessing I will just have to not use Unity Cloud for now until they add more features for customizing the xcode settings.

 

Here is the Cloud error log:

And here is the xcode error when just building directly from unity:

 

Thanks David! I did this, but also adding the all load flag:

Code (CSharp):

1. proj.AddBuildProperty (target, "OTHER_LDFLAGS", "-all_load");

And still get errors, I'm going to talk to the plugin dev, I think the problem is with it and not with unity cloud.

Here is from the full cloud log where the error occurs:

 

Ok I got it to work! Here is the post build script I used, hope this helps anyone else.

Code (CSharp):

1. using UnityEngine;
2. using UnityEditor;
3. using UnityEditor.Callbacks;
4. using System.Collections;
5. #if UNITY_IOS
6. using UnityEditor.iOS.Xcode;
7. #endif
8. using System.IO;
9. using System.Linq;
10.  
11. public class PostBuildProcessor : MonoBehaviour
12. {
13.     #if UNITY_IOS
14.     /*
15.     This methods are per platform post export methods. They can be added additionally to the post process attributes in the Advanced Features Settings on UCB using
16.     - PostBuildProcessor.OnPostprocessBuildiOS
17.     - PostBuildProcessor.OnPostprocessBuildAndroid
18.     depending on the platform they should be executed.
19.     Here is the basic order of operations (e.g. with iOS operation)
20.     - Unity Cloud Build Pre-export methods run
21.     - Export process happens
22.     - Methods marked the built-in PostProcessBuildAttribute are called
23.     - Unity Cloud Build Post-export methods run
24.     - [unity ends]
25.     - (iOS) Xcode processes project
26.     - Done!
27.     More information can be found on http://forum.unity3d.com/threads/solved-ios-build-failed-pushwoosh-dependency.293192/
28.     */
29.     public static void OnPostprocessBuildiOS (string exportPath)
30.     {
31.     }
32.     #endif
33.    
34.     // a normal post process method which is executed by Unity
35.     [PostProcessBuild]
36.     public static void OnPostprocessBuild (BuildTarget buildTarget, string path)
37.     {
38.         #if UNITY_IOS
39.        
40.         Debug.Log("OnPostprocessBuildiOS");
41.         string projPath = path + "/Unity-iPhone.xcodeproj/project.pbxproj";
42.        
43.         PBXProject proj = new PBXProject ();
44.         proj.ReadFromString (File.ReadAllText (projPath));
45.        
46.         string target = proj.TargetGuidByName ("Unity-iPhone");
47.        
48.         // Set a custom link flag
49.         proj.AddBuildProperty (target, "OTHER_LDFLAGS", "-all_load");
50.         proj.AddBuildProperty (target, "OTHER_LDFLAGS", "-ObjC");
51.  
52.         // add frameworks
53.         proj.AddFrameworkToProject(target, "AdSupport.framework", true);
54.         proj.AddFrameworkToProject(target, "CoreTelephony.framework", true);
55.         proj.AddFrameworkToProject(target, "EventKit.framework", true);
56.         proj.AddFrameworkToProject(target, "EventKitUI.framework", true);
57.         proj.AddFrameworkToProject(target, "iAd.framework", true);
58.         proj.AddFrameworkToProject(target, "MessageUI.framework", true);
59.         proj.AddFrameworkToProject(target, "StoreKit.framework", true);
60.         proj.AddFrameworkToProject(target, "Security.framework", true);
61.         proj.AddFrameworkToProject(target, "GameKit.framework", true);
62.        
63.         File.WriteAllText (projPath, proj.WriteToString ());
64.        
65.         #endif
66.     }
67. }

 

One issue people seem to have had with XCode and Unity5 is with Automatic Reference Counting, resulting in errors like:

• error: 'retain' is unavailable: not available in automatic reference counting mode
• error: ARC forbids explicit message send of 'retain'
• error: 'release' is unavailable: not available in automatic reference counting mode
• error: ARC forbids explicit message send of 'release'

I'm attempting to use the post process build processes to resolve this, but with little success. I'm not super experienced with iOS development but it seems like normally there is a way to turn ARC off using Build Settings, but I'm not sure how I'd accomplish this using a post build script?

 

@David Berger , do you have a reference for which flags correspond to what settings? Is there a way I can figure it out myself?

i.e. how do you know that "OTHER_LDFLAGS" is the right place to add -ObjC ?

In particular I want to know how to enable Push Notification in my XCode project. Thanks!