It is saying surface isn't declared. The application was working fine until I upgraded xcode. I included the problem area of code. I use unity if that helps solve the issure.
- (void) applicationWillResignActive:(UIApplication*)application
{
printf_console("-> applicationWillResignActive()\n");
UnityPause(true);
PresentSurface(&_surface);
QCARUnityPlayer::getInstance().QCARPause(true);
_didResignActive = YES;
}
Looking at the function you supplied, it ought to be as below:
- (void) applicationWillResignActive:(UIApplication*)application
{
printf_console("-> applicationWillResignActive()\n");
UnityPause(true);
QCARUnityPlayer::getInstance().QCARPause(true);
_didResignActive = YES;
}
...which makes me think there is some confusion or clash with the versions of Unity Vuforia Extension.
Make sure you have the latest one and ensure there are no old versions or components present.
The key here is the PostProcessBuildPlayer which updates various file to complete the Unity/Vuforia integration - this is under Assets/Editor.
The latest version does not write out PresentSurface(&_surface) so please check as described.
HTH
N
Is there anyone has solved this problem?
Well, if you read below the answer is yes.
You need to upgrade to the latest version of the Vuforia SDK and make sure that there are no old components present.
Take a backup and then follow the steps in the migration guide:
https://developer.vuforia.com/resources/dev-guide/migrating-your-unity-project
N