[英]Cannot convert value of type 'CFString' to expected argument type 'UnsafePointer<Void>' (aka 'UnsafePointer<()>')
当我定义行时，我收到了构建错误
let runFont : CTFontRef = CFDictionaryGetValue(CTRunGetAttributes(run), kCTFontAttributeName)
错误是：无法将'CFString'类型的值转换为预期的参数类型'UnsafePointer'（又名'UnsafePointer <（）>'）
尝试
let runFont = unsafeBitCast(CFDictionaryGetValue(CTRunGetAttributes(run), unsafeBitCast(kCTFontAttributeName, UnsafePointer<Void>.self)), CTFontRef.self)
Swift 3版@vadian回答：
let runFont = unsafeBitCast(CFDictionaryGetValue(CTRunGetAttributes(run), unsafeBitCast(kCTFontAttributeName, to: UnsafeRawPointer.self)), to: CTFont.self)
无法将“CMSampleTimingInfo”类型的值转换为预期的参数类型“UnsafePointer” <CMSampleTimingInfo> “
[英]Cannot convert value of type 'CMSampleTimingInfo' to expected argument type 'UnsafePointer<CMSampleTimingInfo>'
无法转换“UnsafePointer”类型的值<T> ' 到预期的参数类型 'UnsafePointer<Int16> '
[英]Cannot convert value of type 'UnsafePointer<T>' to expected argument type 'UnsafePointer<Int16>'
Spritekit | SWIFT 3 | -无法将Void（aka'（）'类型的值转换为预期的参数类型'unsafeRawPointer'
[英]Spritekit | SWIFT 3 | - Cannot convert value of type Void (aka'()' to expected argument type 'unsafeRawPointer'
无法使用类型（UnsafeMutableRawPointer）的参数列表来调用类型UnsafePointer <_>的初始化程序
[英]Cannot invoke initializer for type UnsafePointer<_> with an argument list of type (UnsafeMutableRawPointer)
无法将类型'（）'的值转换为预期的参数'（）-> void'
[英]cannot convert value of type '()' to expected argument '() -> void'
无法将类型'（） - > Void'的值转换为预期的参数类型'（（ - - > Void）？'
[英]Cannot convert value of type '() -> Void' to expected argument type '(() -> Void)?'
无法将类型“（Void）->（）”的值转换为预期的参数类型“（）-> Void”
[英]Cannot convert value of type '(Void) -> ()' to expected argument type '() -> Void'
如何传递UnsafeMutablePointer类型的参数 <UnsafePointer<Void> >
[英]How to pass parameter of type UnsafeMutablePointer<UnsafePointer<Void>>
无法转换类型'（_）->（）的值？ 到预期的参数类型'@convention（block）（）-> Void'
[英]Cannot convert value of type '(_) -> ()?' to expected argument type '@convention(block) () -> Void'
无法使用完成处理程序将类型“（）”的值转换为预期的参数类型“（）-> Void”
[英]Cannot convert value of type '()' to expected argument type '() -> Void' with a completionHandler
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