# Frequently asked questions

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## 1. dyld: Library not loaded: /usr/lib/libstdc++.6.dylib

-   libstdc++ is deprecated for 5+ years, Apple removes it in Xcode 10.

    This issue has been resolved.

## 2. dyld: Library not loaded: MobileRTC.framework/MobileRTC

-   Our **iOS SDK** is a dynamic library, please import the

    **MobileRTC.framework** into:

    -   **Link Binary With Libraries**
    -   **Embedded Binaries**

## 3. d:undefined symbols for architecture x86_64

-   If you would like to try iOS SDK on the emulator, or on all architectures (x86_64, i386, etc.), please use the "All" version.

## 4. The view moves up around 20px after leaving a meeting

-   This case is rare but we have a solution for you. Implement the following function to fix this issue:

**viewWillAppear**

```swift
- (void)viewWillAppear:(BOOL)animated
{
  [super viewWillAppear:animated];
  //For bug that occurs when there are 20 pixels in the bottom while leaving meeting quickly
  [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAni- mationNone];
  [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAni- mationNone];
}
```

## 5. `Unsupported Architecture. Your executable contains unsupported architecture '[x86_64, i386]`

-   As the [answer on StackOverflow](https://stackoverflow.com/questions/42641806/check-and-remove-unsupported-architecture-x86-64-i386-in-ipa-archive) says:

> Apple has started complaining if app contains simulator architectures
> during distribution.

So if you are going to publish your application through App Store,
please use the **device-only** version. Zoom Meeting iOS SDK device only
version: &lt;https://github.com/zoom/zoom-sdk-ios>