如何修复错误 – "No Visible @interface for ARCamera"？

Question

我正在尝试构建一个 downloaded from git 的项目，但在 Xcode beta 9 中遇到了一些错误。我注意到有些东西已被弃用，例如 ARWorldTrackingSessionConfiguration 所以我更改了它们并修复了它们。但是我收到一个无法修复的错误，这是代码中的部分：

matrix_float4x4 projectionMatrix = [frame.camera projectionMatrixWithViewportSize: nativeSize
                                    orientation:[[UIApplication sharedApplication] statusBarOrientation]
                                    zNear:(CGFloat)unityCameraNearZ 
                                    zFar:(CGFloat)unityCameraFarZ];

我无法解决这个问题，我不知道该怎么做。错误是这样的：

No visible @interface for 'ARCamera' declares the selector 'projectionMatrixWithViewportSize:orientation:zNear:zFar

希望你能帮我解决这个问题？

谢谢。

Answer 1

首先，您应该将 XCode 从测试版更新到稳定版。

至于

No visible @interface for 'ARCamera' declares the selector 'projectionMatrixWithViewportSize:orientation:zNear:zFar

Here is official Apple documentation about ARCamera class which shows that there is no method projectionMatrixWithViewportSize:orientation:zNear:zFar and it's most possibly was changed to projectionMatrixForOrientation:viewportSize:zNear:zFar:。这两个方法的签名需要相同的参数，所以将旧方法替换为新方法不会有问题。

如何修复错误 – "No Visible @interface for ARCamera"？

How to fix error – "No Visible @interface for ARCamera"?

unity3d

augmented-reality

arkit