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Twitter：twittersdk:// 这个是一定要配置的哦，要不然会调用失败的
Facebook：一定要按照提示都填上
facebook错误1：
feature unavailable facebook login is currently unavailable for this app,since we are updating additional details for this app ,please try again later
facebook错误2：
Login Error:There is an error in logging you into this application.Please try again later
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Twitter
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