react-native run-android command errors with java.lang.outofmemoryerror

Question

I keep getting an out of memory error whenever I try and do react-native run-android from within Visual Studio code. I've also tried just using the standard windows terminal but I get the same thing.

I've been looking at trying to increase it but it doesn't seem to help:

I've run javaw -XX:+PrintFlagsFinal | find "MaxHeapSize" javaw -XX:+PrintFlagsFinal | find "MaxHeapSize" which gives me 268435456

I then tried to increase it via 'configure java':

But when I run the command again I get the same number back for the heap size and if I try react-native run-android again, I get the same error.

Answer 1

You need to increase the heapSize for your android app. You can change the heapSize of the app in android/app/src/main/AndroidManifest.xml file.

Set android:largeHeap="true" on application tag like this.

<application
  android:largeHeap="true"

Usually apps runs without setting largeHeap:true. Make sure your coding is right and not overfetching data or something like that, before changing to largeHeap and set largeHeap to true only if necessary.