1.Explicit call to xxxxx results in duplicate call to xxxxx（方法被重复调用）
方法名重复了，检查一下是不是跟原生SDK的方法命名一样
2.Assigning to ‘id<xxxxDelegate>’ from incompatible type ‘xxxxViewController *const __strong’
给xxxxViewController添加xxxxDelegate代理
@interface xxxxViewController : UIViewController<xxxxDelegate>
3.code will never be executed
代码不会执行
4.Implicit conversion loses integer precision: 'unsigned long' to 'CC_LONG' (aka 'unsigned int')
CC_MD5(str,strlen(str), r);，改成了CC_MD5(str,(CC_LONG)strlen(str), r);即可。
5.Incompatible pointer to integer conversion sending 'void *' to parameter of type 'NSStringEncoding' (aka 'unsigned long')
参数传递时转换错误，把传入NSStringEncoding的nil值改为0
6.The image set "xxxx" has an unassigned child.
删除Images.xcassets里边叫“xxxx”的多余图片
7.The Copy Bundle Resources build phase contains this target's Info.plist file
删除Build phases->Copy bundle Resources->info.plist->选中然后删除
8.Directory not found for option '-L/路径/xxxxSDK'
这种提示，通常是由于添加了第三方SDK，但是后来改了个名字或者去掉了SDK
删除Build Settings-->Search Paths-->Library Search Paths 和Framework Search Paths中警告的路径
iOS之"performSelector may cause a leak because its selector is unknown"警告原因及其解决办法
怎么去掉Xcode工程中的某种类型的警告 Implicit conversion loses integer precision: 'NSInteger' (aka 'long') to 'int32
集成支付宝报一堆warning: (arm64) /Users/scmbuild/workspace/standard-pay/.....警告问题解决办法亲测可行！
