Trouble with RN 0.44.0

Using:

react-native-cli: 1.2.0
react-native: 0.44.0

Followed instructions for install and usage:

$ npm install --save react-native-keep-awake
$ react-native link

Included package:

import KeepAwake from 'react-native-keep-awake';

Added component to code (in render method):

<KeepAwake />

Nothing else and I get the following:

undefined is not an object (evaluating '_reactNative.NativeModules.KCKeepAwake.activate')
activate
    index.js:8:30
componentWillMount
    index.js:16:4
<unknown>
    ReactCompositeComponent.js:322:16
measureLifeCyclePerf
    ReactCompositeComponent.js:63:11
mountComponent
    ReactCompositeComponent.js:322:10
mountComponent
    ReactReconciler.js:57:6
mountChildren
    ReactMultiChild.js:277:10
initializeChildren
    ReactNativeBaseComponent.js:67:41
mountComponent
    ReactNativeBaseComponent.js:173:6
mountComponent
    ReactReconciler.js:57:6
performInitialMount
    ReactCompositeComponent.js:516:6
mountComponent
    ReactCompositeComponent.js:347:8
mountComponent
    ReactReconciler.js:57:6
performInitialMount
    ReactCompositeComponent.js:516:6
mountComponent
    ReactCompositeComponent.js:347:8
mountComponent
    ReactReconciler.js:57:6
mountChildren
    ReactMultiChild.js:277:10
initializeChildren
    ReactNativeBaseComponent.js:67:41
mountComponent
    ReactNativeBaseComponent.js:173:6
mountComponent
    ReactReconciler.js:57:6
performInitialMount
    ReactCompositeComponent.js:516:6
mountComponent
    ReactCompositeComponent.js:347:8
mountComponent
    ReactReconciler.js:57:6
updateChildren
    ReactChildReconciler.js:165:10
_reconcilerUpdateChildren
    ReactMultiChild.js:223:10
_updateChildren
    ReactMultiChild.js:366:6
updateChildren
    ReactMultiChild.js:352:25
receiveComponent
    ReactNativeBaseComponent.js:118:24
receiveComponent
    ReactReconciler.js:158:38
_updateRenderedComponentWithNextElement
    ReactCompositeComponent.js:1140:8
_updateRenderedComponent
    ReactCompositeComponent.js:1111:6
_performComponentUpdate
    ReactCompositeComponent.js:1032:36
updateComponent
    ReactCompositeComponent.js:915:8
receiveComponent
    ReactCompositeComponent.js:745:6
receiveComponent
    ReactReconciler.js:158:38
updateChildren
    ReactChildReconciler.js:142:10
_reconcilerUpdateChildren
    ReactMultiChild.js:223:10
_updateChildren
    ReactMultiChild.js:366:6
updateChildren
    ReactMultiChild.js:352:25
receiveComponent
    ReactNativeBaseComponent.js:118:24
receiveComponent
    ReactReconciler.js:158:38
_updateRenderedComponentWithNextElement
    ReactCompositeComponent.js:1140:8
_updateRenderedComponent
    ReactCompositeComponent.js:1111:6
_performComponentUpdate
    ReactCompositeComponent.js:1032:36
updateComponent
    ReactCompositeComponent.js:915:8
receiveComponent
    ReactCompositeComponent.js:745:6
receiveComponent
    ReactReconciler.js:158:38
_updateRenderedComponentWithNextElement
    ReactCompositeComponent.js:1140:8
_updateRenderedComponent
    ReactCompositeComponent.js:1111:6
_performComponentUpdate
    ReactCompositeComponent.js:1032:36
updateComponent
    ReactCompositeComponent.js:915:8
performUpdateIfNecessary
    ReactCompositeComponent.js:770:8
performUpdateIfNecessary
    ReactReconciler.js:210:46
runBatchedUpdates
    ReactUpdates.js:146:6
perform
    Transaction.js:150:24
perform
    Transaction.js:150:24
perform
    ReactUpdates.js:78:6
flushBatchedUpdates
    ReactUpdates.js:164:24
closeAll
    Transaction.js:221:29
perform
    Transaction.js:163:24
batchedUpdates
    ReactDefaultBatchingStrategy.js:61:33
batchedUpdates
    ReactUpdates.js:92:41
batchedUpdates
    ReactGenericBatching.js:38:29
batchedUpdatesWithControlledComponents
    ReactGenericBatching.js:51:26
_receiveRootNodeIDEvent
    ReactNativeEventEmitter.js:105:40
receiveTouches
    ReactNativeEventEmitter.js:193:8
__callFunction
    MessageQueue.js:250:47
<unknown>
    MessageQueue.js:101:26
__guard
    MessageQueue.js:218:6
callFunctionReturnFlushedQueue
    MessageQueue.js:100:17

[sdotson]

I got it working by re-building the app in Android Studio and re-running react-native run-android

[dezigntime]

I was also having an issue with this, I had it working on 1 machine when i copied it to another it was failing with the “KCKeepAwake.activate”, error; Even after i had ran I had ran react-native link, and even rnpm link.

So Inspecting the ios/build/Build/Products/Debug-iphonesimulator I noticed the compiled libKCKeepAwake.a was not being placed in this folder.

So what I needed to do is open up Xcode

1. Navigate to Main .xcodeproj General Tab
2. Add the ‘libKCKeepAwake.a’ to your Linked Frameworks and Libraries section.

not sure at what point the libKCKeepAwake.a gets generated and placed into your workspace, maybe after the the successful build.

After adding it here, reran the build, and that necessary file was now in my ios/build/Build/Products/Debug-iphonesimulator folder, and I was no longer getting the error in my simulator and device.

Hopes this works for someone else running into this issue.