I am using iOS 9 as target & using Xcode 7.1, tried everything as my level best for all the solutions of ATS but didn't work. Below is the following error description coming at console. If any suggestion comes I will be obliged.
Some of the key things here are -
NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
Error excluding Main.db from backup Error Domain=NSCocoaErrorDomain Code=4 "The file “Main.db” doesn’t exist." UserInfo={NSURL=file:///Users/Raj/Library/Developer/CoreSimulator/Devices/BC3A0589-3B9A-4AFD-8F2A-B1C92FA341DD/data/Containers/Data/Application/70B3043A-8553-41E5-A147-8508D08BF3E6/Documents/Main.db, NSFilePath=/Users/Raj/Library/Developer/CoreSimulator/Devices/BC3A0589-3B9A-4AFD-8F2A-B1C92FA341DD/data/Containers/Data/Application/70B3043A-8553-41E5-A147-8508D08BF3E6/Documents/Main.db, NSUnderlyingError=0x798465c0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}
2016-08-30 21:09:10.867 GFIM[80653:484899] SFOAuthCredentials:revokeRefreshToken: refresh token revoked. Cleared identityUrl, instanceUrl, issuedAt fields
2016-08-30 21:09:10.871 GFIM[80653:484899] INFO|0|SFPasscodeManager|Resetting passcode upon logout.
SFOAuthCredentials:revokeRefreshToken: refresh token revoked. Cleared identityUrl, instanceUrl, issuedAt fields
These are the things might be the cause of issue.
2016-08-30 21:09:19.095 GFIM[80653:484899] SFOAuthCoordinator:webViewDidStartLoad: host=test.salesforce.com : path=/
2016-08-30 21:09:19.863 GFIM[80653:484962] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2016-08-30 21:09:19.983 GFIM[80653:484962] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2016-08-30 21:09:20.016 GFIM[80653:484962] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2016-08-30 21:09:20.054 GFIM[80653:484962] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2016-08-30 21:09:20.194 GFIM[80653:484962] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2016-08-30 21:09:20.956 GFIM[80653:484962] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2016-08-30 21:09:38.285 GFIM[80653:484899] SFOAuthCoordinator:webView:shouldStartLoadWithRequest: (navType=1): host=test.salesforce.com : path=/
2016-08-30 21:09:38.311 GFIM[80653:484899] SFOAuthCoordinator:webViewDidStartLoad: host=test.salesforce.com : path=/
2016-08-30 21:09:38.834 GFIM[80653:484899] SFOAuthCoordinator:webView:shouldStartLoadWithRequest: (navType=1): host=5-prod--stg.cs30.my.salesforce.com : path=/secur/frontdoor.jsp
From iOS 9 Onwards Apple Enforce To make HTTP Request with Specific Host for Security Purpose. //Also works on iOS 10 with Swift 3
For that, you need to Add NSAppTransportSecurity Dictionary into your .plist the file of Project. Then your plist will look something like this as follows.
Here NSAllowArbitraryLoads basically means Connect to anything (this is probably BAD). Instead of this you can add a particular Host to be Connect.
If you try to make HTTP requests with ATS enabled (using NSURLSession or libraries like AFNetworking), you’ll see errors like this.
Here’s how to disable ATS entirely. Open Info.plist, and add the following lines:
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
Your info.plist file should look like this
See this post: https://stackoverflow.com/a/31077483/6763322
I just ran it in the device instead of simulator.It started working
For those who are working in xcode 8...this will help you...
来源：https://stackoverflow.com/questions/39232510/nsurlsession-nsurlconnection-http-load-failed-kcfstreamerrordomainssl-9813-i