OneSignal Unity iOS crash on startup - ios

Question

I started working on a project that was built using OneSignal v1.15.2.
On Android everything works fine.
On iOS instead, I tried to follow this: https://documentation.onesignal.com/v3.0/docs/unity-sdk-setup (points [5.1 - 5.7]: they just add UserNotifications.framework)
Now, if I launch my application it crashes and the message is: "dyld: image not found".
If I remove UserNotifications.framework the all game runs ok but notifications.
Is the current version of OneSignal so different from the past? Is there another setup process guide that I should follow?
I'm using Unity 5.3.1p4 and XCode 8.2.1 (I was using XCode 8.3.1 and notifications worked well, but this newer version have some documented incompatibility with Unity 5.3.1p4).
Can anyone help me?
Thank you.
Best regard,
Andrea.

Answer 1

For what it's worth I'm using Unity 5.6.0 and Xcode 8.3.2 with the SDK Unity5OneSignalSDK.unitypackage and points 5.1 through 5.7 where sufficient to get push notifications working.
I am also automating the background modes to check "remote-notifications" using the following post processor ... I can't find a way to automate the link with UserNotifications.framework yet tho ... let me know if anybody has ideas on how to do that.
// ---------------------------------------------------------------------------------------------------------------------
public static class XCodePostProcess
{
// -----------------------------------------------------------------------------------------------------------------
[PostProcessBuild(100)]
public static void OnPostprocessBuild( BuildTarget target, string pathToBuildProject )
{
if (target == BuildTarget.iOS)
{
UpdateInfoPlist( pathToBuildProject );
}
}
// -----------------------------------------------------------------------------------------------------------------
private static void UpdateInfoPlist( string path )
{
// load plist
string plistPath = Path.Combine( path, "Info.plist" );
PlistDocument plist = new PlistDocument();
plist.ReadFromString( File.ReadAllText( plistPath ) );
//Get Root
PlistElementDict rootDict = plist.root;
//Add Necessary Things
PlistElementArray LSApplicationQueriesSchemes = rootDict.CreateArray( "LSApplicationQueriesSchemes" );
LSApplicationQueriesSchemes.AddString( "itms-beta" ); // test flight
// localizations
PlistElementArray CFBundleLocalizations = rootDict.CreateArray( "CFBundleLocalizations" );
CFBundleLocalizations.AddString( "en" ); // english
CFBundleLocalizations.AddString( "de" ); // german
CFBundleLocalizations.AddString( "fr" ); // french
CFBundleLocalizations.AddString( "es" ); // spanish
// for OneSigna remote notifications
PlistElementArray UIBackgroundModes = rootDict.CreateArray( "UIBackgroundModes" );
UIBackgroundModes.AddString( "remote-notification" );
//WriteFile
File.WriteAllText (plistPath, plist.WriteToString ());
}
}