swift - Default initializer not working as expected for class contained in struct -

most simplified version of issue can expressed via code :

struct outer {     class person {         var name:string?     }     let member = person() } 

throws compile error : outer.person cannot constructed because has no accessible initializers.
any hints on why doesn't compile ?

possible workarounds (either 1 eliminate compile error) :

1. setting initial value nil optional property var name:string? = nil . doesn't partially contradicts purpose of declaring optional (not needing explicitly assign value upon declaration)?
2. explicitly mentioning reference type when creating class instance let member:person = person() . why isn't type inference doing same thing behind scenes ?
3. replacing outer struct class.

observation, second workaround doesn't in case class local, belonging func :

func checkperson() {     class person {         var name:string?     }     let member:person = person()     // still throws compile error } 

case workaround nr 1. ( setting initial value nil ) 1 removes compile error.

i using xcode 6.2, os x yosemite 10.10.2

in xcode 6.2(swift 1.1), person class not have init() method included.

change code the following:

struct outer {     class person {         var name:string?         init(){}     }     let member = person() } 

seems apple has fixed issue in xcode 6.3 beta(swift 1.2), wont show compile error, following:

struct outer {     class person {         var name:string?     }     let member = person() }