With "Send iOS Debug build" command I successfully obtained the debug version of my app.
I used a 64-bit iPad mini 2 (you can verify here it has a 64-bit architecture) [INCORRECT, READ UPDATE 3] as test device, so I didn't add the ios.debug.archs build hint.
For installing the app, I sent the OTA link through email, but the process produced the error "Unable to Download App... could not be installed at this time.".
I followed the iOS Signing Wizard (http://www.codenameone.com/manual/signing.html) to generate certificates and I verified all described here (https://www.codenameone.com/blog/my-ios-build-wont-install.html).
What can I do?
UPDATE
These are logs from the iPad:
installd[987] : 0x3c3000 -[MIInstallableBundle performVerificationWithError:]: 487: Incorrect architecture at file:///private/var/mobile/Library/Caches/com.apple.mobile.installd.staging/temp.vRoN6W/extracted/Payload/MyApplication.app/MyApplication
installd[987] : 0x3c3000 -[MIInstaller performInstallationWithError:]: Verification stage failed
itunesstored[916] : 0x1ca5000 __MobileInstallationInstallForLaunchServices_block_invoke240: Returned error Error Domain=MIInstallerErrorDomain Code=15 "Incorrect architecture at file:///private/var/mobile/Library
UPDATE 2
This is the codenameone_settings.properties file:
codename1.arg.java.version=8
codename1.ios.appid=F35988TNH4.it.sitespa.ios.socialapp
codename1.ios.release.provision=C\:\\Users\\[...]\\SocialAppForIOS_distribution.mobileprovision
codename1.arg.rim.obfuscation=false
codename1.arg.ios.newStorageLocation=true
codename1.arg.ios.objC=true
codename1.j2me.nativeTheme=nbproject/nativej2me.res
codename1.arg.ios.project_type=ios
codename1.arg.ios.interface_orientation=UIInterfaceOrientationPortrait\:UIInterfaceOrientationPortraitUpsideDown\:UIInterfaceOrientationLandscapeLeft\:UIInterfaceOrientationLandscapeRight
codename1.displayName=SocialAppForIOS
codename1.arg.ios.pods.platform=,7.0
codename1.android.keystoreAlias=
codename1.ios.release.certificate=C\:\\Users\\[...]\\SocialAppForIOS_distribution.p12
codename1.android.keystorePassword=
codename1.ios.provision=
codename1.arg.android.release=true
codename1.arg.ios.dsym=false
codename1.arg.ios.glAppDelegateHeader=\n\#import "GoogleMaps/GoogleMaps.h"
codename1.arg.ios.statusbar_hidden=false
codename1.arg.ios.afterFinishLaunching=[GMSServices provideAPIKey\:@"[...]"];
codename1.languageLevel=5
codename1.android.keystore=
codename1.arg.ios.pods=,GoogleMaps
codename1.vendor=CodenameOne
codename1.arg.javascript.googlemaps.key=[...]
codename1.arg.win.ver=8
codename1.arg.ios.locationUsageDescription=Some functionality of the application depends on your location
codename1.arg.android.playService.maps=true
codename1.ios.certificatePassword=
codename1.ios.debug.certificatePassword=password
codename1.arg.android.GoogleMaps.minPlayServicesVersion=9.4.0
codename1.mainName=MyApplication
codename1.arg.ios.pods.sources=,https\://github.com/CocoaPods/Specs.git
codename1.ios.release.certificatePassword=password
codename1.arg.ios.prerendered_icon=false
codename1.ios.debug.certificate=C\:\\Users\\[...]\\SocialAppForIOS_development.p12
libVersion=202
codename1.arg.android.xpermissions=<uses-permission android\:name\="android.permission.ACCESS_NETWORK_STATE"/> <uses-permission android\:name\="com.google.android.providers.gsf.permission.READ_GSERVICES"/><uses-feature android\:glEsVersion\="0x00020000" android\:required\="true"/>
codename1.arg.ios.application_exits=false
codename1.description=
codename1.secondaryTitle=CodenameOne_Template
codename1.ios.debug.provision=C\:\\Users\\[...]\\SocialAppForIOS_development.mobileprovision
codename1.arg.j2me.nativeThemeConst=0
codename1.rim.certificatePassword=
codename1.version=1.0
codename1.ios.certificate=
codename1.icon=icon.png
codename1.rim.signtoolCsk=
codename1.arg.android.debug=false
codename1.rim.signtoolDb=
codename1.arg.ios.includePush=false
codename1.arg.ios.testFlight=false
codename1.packageName=it.sitespa.ios.socialapp
UPDATE 3
I checked with Apple support my device. It's a 32-bit iPad mini (details here). I set ios.debug.archs as armv7, but from device logs I can notice the same "incorrect architecture" error.