Facebook sharing with Swift 3 & Swift SDK (0.2.0)
<p>I successfully installed Facebook pods (all three of them), and I can sign-in user in my app, but I can't share anything.</p>

<p>Code is very simple (it's from the sample project, not real one):</p>

<pre><code>import FacebookLogin
import FacebookShare
</code></pre>

<p>In viewDidLoad():</p>

<pre><code>button.addTarget(self, action: "sharePic", for: .touchUpInside)
</code></pre>

<p>And also I have:</p>

<pre><code>func sharePic() {

    let url = URL(fileURLWithPath: "https://developers.facebook.com")        
    let content = LinkShareContent(url: url, title: "facebook", description: "facebook developers", quote: "fbd", imageURL: nil)
    try! ShareDialog.show(from: self, content: content)
}
</code></pre>

<p>On this I'm constantly getting this error message:</p>

<pre><code>fatal error: 'try!' expression unexpectedly raised an error: FacebookShare.ShareError.reserved: file /Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang-800.0.58.6/src/swift/stdlib/public/core/ErrorType.swift, line 178
</code></pre>

<p>I don't have a question about "try!" (I know it's a bad practice), but I don't understand what is wrong with my code, and how to understand what is wrong here.</p>