我通過(guò)Testovertheair這種方式測(cè)試iOS程序，但是有時(shí)會(huì)遇到“無(wú)法下載應(yīng)用程序”的錯(cuò)誤，詳細(xì)信息里只提示“當(dāng)前無(wú)法下載xxx”。對(duì)于這種情況，該如何診斷呢？以前遇到過(guò)這種問(wèn)題，比如目標(biāo)平臺(tái)的要求設(shè)定過(guò)高（如iOS5.1但手機(jī)只有5.0），或者是簡(jiǎn)單的網(wǎng)絡(luò)問(wèn)題等。補(bǔ)充：部署到自己的服務(wù)器上無(wú)法下載和安裝，但是通過(guò)TestFlight可以，所以目前安裝包應(yīng)該沒(méi)有問(wèn)題。我還用iPhoneConfigurationUtility看了一下手機(jī)的控制臺(tái)輸出，似乎也沒(méi)有看到什么問(wèn)題，日志如下（Chrome,iPhone4,iOS5.1.1,越獄版）：''Oct2411:01:38unknownSpringBoard[63]:Posting'com.apple.iokit.hid.displayStatus'notifyState=1Oct2411:01:38unknownUserEventAgent[19]:DEBUG:Changingscreenblankedstate:0Oct2411:01:38unknownSpringBoard[63]:MultitouchHID:detectionmode:255->0(deferringuntilbootloaded)Oct2411:01:38unknownSpringBoard[63]:MultitouchHID:devicebootloadedOct2411:01:38unknownSpringBoard[63]:MultitouchHID:detectionmode:0->0Oct2411:01:38unknownkernel[0]:set_crc_notification_state0Oct2411:01:39unknowncalaccessd[2457]:MS:Notice:Installing:(null)[calaccessd](690.10)Oct2411:01:39unknownsandboxd[2459]:MS:Notice:Installing:(null)[sandboxd](690.10)Oct2411:01:44unknownkernel[0]:launchd[2461]Builtinprofile:container(sandbox)Oct2411:01:44unknownkernel[0]:launchd[2461]Container:/private/var/mobile/Applications/92BF7598-F310-431C-A39B-06C532D6B509[69](sandbox)Oct2411:01:44unknownChrome[2461]:MS:Notice:Installing:com.google.chrome.ios[Chrome](690.10)Oct2411:01:44unknownChrome[2461]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/Activator.dylibOct2411:01:44unknownChrome[2461]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/SogouInputIPhone4.dylibOct2411:01:45unknownChrome[2461]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/libstatusbar.dylibOct2411:01:45unknownChrome[2461]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/qihoo.360safesrv.dylibOct2411:01:45unknownChrome[2461]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/qihoo.360safesrv1.dylibOct2411:01:46unknownlsd[2462]:MS:Notice:Installing:(null)[lsd](690.10)Oct2411:01:48unknownsecurityd[2464]:MS:Notice:Installing:(null)[securityd](690.10)Oct2411:01:51unknownkeybagd[2466]:MS:Notice:Installing:(null)[keybagd](690.10)Oct2411:02:04unknownitunesstored[2468]:MS:Notice:Installing:com.apple.itunesstored[itunesstored](690.10)Oct2411:02:05unknownwifid[24]:WiFi:[372740525.352535]:ClientitunesstoredisbackgroundapplicationOct2411:02:12unknownsandboxd[2470]:MS:Notice:Installing:(null)[sandboxd](690.10)Oct2411:02:12unknownSpringBoard[63]:couldnotsavethumbnailfordownloadingicon:image=(null)path='/var/mobile/Library/SpringBoard/DownloadingIconImageCache/com.xyz-68B854CC-8188-490F-B895-041B36C63C06'Oct2411:02:12unknowninstalld[2472]:MS:Notice:Installing:(null)[installd](690.10)Oct2411:02:13unknowninstalld[2472]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/AppSync.dylibOct2411:02:13unknowninstalld[2472]:AppSyncloadedinto/usr/libexec/installdOct2411:02:13unknownSpringBoard[63]:couldnotsavethumbnailfordownloadingicon:image=(null)path='/var/mobile/Library/SpringBoard/DownloadingIconImageCache/com.xyz-77B038CA-2D1D-4985-928C-2A3271FDA412'Oct2411:02:15unknownSpringBoard[63]:Chrome[2461]:Couldnotstat/private/var/mobile/Applications/92BF7598-F310-431C-A39B-06C532D6B509/tmp/etilqs_Xqc6Sge1rmJT944:NosuchfileordirectoryOct2411:02:15unknownSpringBoard[63]:Chrome[2461]:Couldnotstat/private/var/mobile/Applications/92BF7598-F310-431C-A39B-06C532D6B509/tmp/etilqs_PwcdDzBzGOMgrB8:NosuchfileordirectoryOct2411:02:15unknownSpringBoard[63]:Chrome[2461]:Couldnotstat/private/var/mobile/Applications/92BF7598-F310-431C-A39B-06C532D6B509/tmp/etilqs_cvGlKI57OhTXiVd:NosuchfileordirectoryOct2411:03:25unknownaggregated[62]:PLAggregateStateError:Leavingstatepluggedin_screen_offeventhoughwearenotinit,doingnothingOct2411:03:25unknownaggregated[62]:PLAggregateStateError:Leavingstatepluggedin_chargingeventhoughwearenotinit,doingnothingOct2411:03:25unknownaggregated[62]:PLAggregateStateError:Leavingstateunplugged_screen_offeventhoughwearenotinit,doingnothingOct2411:03:25unknownUserEventAgent[19]:DEBUG:Changingpoweredstate:0Oct2411:03:25unknownkernel[0]:AppleD1815PMUPowerSource:AppleUSBCableDetect0Oct2411:03:25unknownkernel[0]:AppleSynopsysOTGDevice::handleUSBCableDisconnectOct2411:03:27unknownaggregated[62]:PLAggregateStateError:Leavingstateunplugged_asleepeventhoughwearenotinit,doingnothingOct2411:03:27unknownaggregated[62]:PLAggregateStateError:Leavingstateunplugged_screen_offeventhoughwearenotinit,doingnothingOct2411:03:27unknownaggregated[62]:PLAggregateStateError:Leavingstatepluggedin_screen_offeventhoughwearenotinit,doingnothingOct2411:03:28unknownUserEventAgent[19]:DEBUG:Changingpoweredstate:1Oct2411:03:28unknownsecurityd[2477]:MS:Notice:Installing:(null)[securityd](690.10)Oct2411:03:28unknownsandboxd[2476]:MS:Notice:Installing:(null)[sandboxd](690.10)Oct2411:03:28unknownkernel[0]:AppleD1815PMUPowerSource:AppleUSBCableDetect1Oct2411:03:28unknownkernel[0]:AppleD1815PMUPowerSource:AppleUSBCableTypeUSBHostOct2411:03:28unknownkernel[0]:AppleSynopsysOTGDevice::handleUSBResetOct2411:03:28unknownkernel[0]:AppleSynopsysOTGDevice::handleUSBResetOct2411:03:28unknownkernel[0]:launchd[2475]Builtinprofile:ptpd(sandbox)Oct2411:03:28unknownptpd[2474]:MS:Notice:Installing:(null)[ptpd](690.10)Oct2411:03:28unknownptpd[2474]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/Activator.dylibOct2411:03:29unknownptpd[2474]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/SogouInputIPhone4.dylibOct2411:03:29unknownptpd[2474]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/libstatusbar.dylibOct2411:03:29unknownptpd[2474]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/qihoo.360safesrv.dylibOct2411:03:29unknownptpd[2474]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/qihoo.360safesrv1.dylibOct2411:03:29unknownptpd[2474]:PTPinterfacehasbeenactivatedathighspeed.Oct2411:03:29unknownkernel[0]:launchd[2474]Builtinprofile:ptpd(sandbox)Oct2411:03:30unknownlockdownd[37]:libMobileGestaltcopyMobileEquipmentIdentifier:NoMEIDinCTmobileequipmentinfodictionary-{type=mutabledict,count=5,entries=>1:{contents="kCTMobileEquipmentInfoCurrentSubscriberId"}={contents="460012300660487"}2:{contents="kCTMobileEquipmentInfoCurrentMobileId"}={contents="013130002556488"}4:{contents="kCTMobileEquipmentInfoICCID"}={contents="89860111608311072596"}11:{contents="kCTMobileEquipmentInfoIMEI"}={contents="013130002556488"}12:{contents="kCTMobileEquipmentInfoIMSI"}={contents="460012300660487"}}Oct2411:03:30unknownlockdownd[37]:00381000copy_meid:MobileGestaltfailedtoprovideanMEIDbutreturnednoerror(?)Oct2411:03:30unknowninstalld[2484]:MS:Notice:Installing:(null)[installd](690.10)Oct2411:03:30unknowninstalld[2484]:MS:Notice:Loading:/Library/MobileSubstrate/DynamicLibraries/AppSync.dylibOct2411:03:30unknowninstalld[2484]:AppSyncloadedinto/usr/libexec/installdOct2411:03:31unknownmc_mobile_tunnel[2487]:(Note)MC:mc_mobile_tunnelstarting.Oct2411:03:31unknownmc_mobile_tunnel[2487]:(Note)MC:mc_mobile_tunnelshuttingdown.Oct2411:03:31unknownmc_mobile_tunnel[2488]:(Note)MC:mc_mobile_tunnelstarting.Oct2411:03:31unknownmc_mobile_tunnel[2488]:(Note)MC:mc_mobile_tunnelshuttingdown.Oct2411:03:31unknownlockdownd[37]:00381000set_response_error:handle_start_sessionSessionActiveOct2411:03:35Waynes-iPhonemc_mobile_tunnel[2490]:(Note)MC:mc_mobile_tunnelstarting.Oct2411:03:35Waynes-iPhonemc_mobile_tunnel[2490]:(Note)MC:mc_mobile_tunnelshuttingdown.Oct2411:03:57Waynes-iPhoneCommCenter[68]:NomoreassertionsforPDPcontext0.Returningitbacktonormal.Oct2411:03:57Waynes-iPhoneCommCenter[68]:SchedulingPDPteardowntimerfor(372740937.446775)(currenttime==372740637.446801)Oct2411:03:57Waynes-iPhoneCommCenter[68]:Client[com.apple.persistentconnection[apsd,61]]istellingPDPcontext0togoactive.''----------------------------11月1日補(bǔ)充：現(xiàn)在的情形似乎是通過(guò)WIFI可以下載成功，但是3G不行。原以為是ipa文件的mime類型設(shè)置不正確，導(dǎo)致下載時(shí)無(wú)法看到大?。ㄒ苍S是因?yàn)榉?wù)器用了gzip的緣故）？而因?yàn)閕Phone會(huì)限制3G環(huán)境下載大文件，如果無(wú)法看到大小，那么下載了一定時(shí)間，或者一定大小后還沒(méi)完成就放棄了。后來(lái)將mime改成application/octet-stream用瀏覽器下載可以看到大小和進(jìn)度了（WIFI下載也是），但是。。。3G環(huán)境下載還是失敗。ipa文件大小只有3.5m左右。