最近幫公司準備送審App，發現一個之前沒遇到的問題：Too many symbol files。
以下是信件內容：
Dear developer,
We have discovered one or more issues with your recent delivery for “快樂健康“. To process your delivery, the following issues must be corrected:
Too many symbol files – These symbols have no corresponding slice in any binary [14E42F6A-6621-3606-AC82-4D80F9B8A619.symbols, 2BAD142B-5BFC-38BC-9C5B-7D52EA38AF7A.symbols, 473A1C10-3895-36A6-B6B3-B7E372944994.symbols, 49F9A33E-E8B6-3721-970A-3FE8194778A2.symbols, 4A883445-23F2-3A17-8A15-75512532A0E4.symbols, 4DD1B563-C4B8-369B-86E3-38B6525A1A59.symbols, 930B83B8-DECB-384B-A565-71CFEACD8CEB.symbols, ACEE5ED9-3DA8-35DB-BCB4-4F1581031FD0.symbols, C5E3E577-8FE7-3D18-BF63-5B903D99A96D.symbols, D0CC44EF-B43F-36BC-A0AC-18D951EA1103.symbols, E63CA8C9-3486-34D6-A93E-B984B247895B.symbols, EC0E6A08-CA54-30FE-BA38-E0B17795E481.symbols, F946186C-97CA-33EB-93E3-CBEA7E622844.symbols]
Once the required corrections have been made, you can then redeliver the corrected binary.
Regards,
The App Store team
選擇最簡當的解法，就是更改專案設定：
發現debug information format中的Debug和Release不一樣，過去送審都沒遇到這個問題，難道是最新Xcode 9預設為如此？
要是沒有改為DWARF，打包檔中的dSYMs，就會出現App和Framework的dSYM檔，現在上傳App到App Store是會馬上被退件喔！
Jason-teki-MacBook-Pro:dSYMs happyboy$ dwarfdump -u AFNetworking.framework.dSYM/
UUID: 2BAD142B-5BFC-38BC-9C5B-7D52EA38AF7A (armv7) AFNetworking.framework.dSYM/Contents/Resources/DWARF/AFNetworking
UUID: 72FEC8B9-3120-3F32-BF88-291DAD9E4544 (arm64) AFNetworking.framework.dSYM/Contents/Resources/DWARF/AFNetworking
Jason-teki-MacBook-Pro:dSYMs happyboy$ dwarfdump -u TestDeviceSDK.app.dSYM
UUID: 6EBA24AE-A4DD-3F42-9B32-202F3FC2B7B1 (arm64) TestDeviceSDK.app.dSYM/Contents/Resources/DWARF/TestDeviceSDK
信件中描述到的UUID，真的被我找到啦～
之後有空要了解一下DSYM檔的作用為何。
參考：“Too many symbol files” after successfully submitting my apps。
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