React-native-background-geolocation: [iOS] Crash when start the app

[KarlosQ]

Environment

• Plugin version: 0.2.0-alpha.7
• Platform: iOS
• OS version: 10.2
• Device manufacturer and model: iPhone 5 (simulator)
• React Native version: 0.42

Context

When I start the app the line 112 of LocationManager.m throw a error

The line:

locationManager.allowsBackgroundLocationUpdates = YES;

The error:

* Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: !stayUp || CLClientIsBackgroundable(internal->fClient)'

* First throw call stack:
(
0 CoreFoundation 0x06139bf2 __exceptionPreprocess + 194
1 libobjc.A.dylib 0x04c38e66 objc_exception_throw + 52
2 CoreFoundation 0x0613dd12 +[NSException raise:format:arguments:] + 130
3 Foundation 0x04838af4 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 94
4 CoreLocation 0x01880ad8 CLClientGetCapabilities + 12072
7 libobjc.A.dylib 0x04c4e36b +[NSObject new] + 69prepareModulesWithDispatchGroup:]_block_invoke + 139
13 libdispatch.dylib 0x06f7d396 _dispatch_call_block_and_release + 15
14 libdispatch.dylib 0x06fa8cc3 _dispatch_client_callout + 14
15 libdispatch.dylib 0x06f87c55 _dispatch_main_queue_callback_4CF + 662
16 CoreFoundation 0x060fa05e __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14
17 CoreFoundation 0x060bc8df __CFRunLoopRun + 2319
18 CoreFoundation 0x060bbd5b CFRunLoopRunSpecific + 395
19 CoreFoundation 0x060bbbbb CFRunLoopRunInMode + 123
20 GraphicsServices 0x0927ab4c GSEventRunModal + 177
21 GraphicsServices 0x0927a9c7 GSEventRun + 80
22 UIKit 0x02ebbff3 UIApplicationMain + 148
24 libdyld.dylib 0x06fe3799 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

[MilosR]

You need to add following into your projects Info.plist file

UIBackgroundModes "location"
NSLocationAlwaysUsageDescription "your description"

UIBackgroundModes must be an array of strings, where one string is required - "location", so source code of Info.plist should look like:

...

<key>UIBackgroundModes</key>
<array>
  <string>location</string>
</array>

...

<key>NSLocationAlwaysUsageDescription</key>
<string>App requires background tracking</string>

...

[mauron85]

This is already mentioned in README section iOS Setup.