Cannot invoke method multiply() on null object - android-studio

Question

I'm trying to generate split apk in react-native and getting this error after setting these two properties:
def enableSeparateBuildPerCPUArchitecture = true
def enableProguardInReleaseBuilds = true
This is the error I'm getting:
Cannot invoke method multiply() on null object
Open File
On clicking the open file, it is pointing me to this code:
if (abi != null) { // null for the universal-debug, universal-release variants
output.versionCodeOverride =
versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
}
My configurations are like this:
defaultConfig {
applicationId PACKAGE_NAME
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode VERSION_CODE
multiDexEnabled true
versionName MY_VERSION_HERE
ndk {
abiFilters "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
}
}
splits {
abi {
reset()
enable enableSeparateBuildPerCPUArchitecture
universalApk false // If true, also generate a universal APK
include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
}
}
buildTypes {
release {
minifyEnabled enableProguardInReleaseBuilds
proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
signingConfig signingConfigs.release
}
}
applicationVariants.all { variant ->
variant.outputs.each { output ->
// For each separate APK per architecture, set a unique version code as described here:
// http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
def versionCodes = ["armeabi-v7a":1, "x86":2, "arm64-v8a":3, "x85_64":4]
def abi = output.getFilter(OutputFile.ABI)
if (abi != null) { // null for the universal-debug, universal-release variants
output.versionCodeOverride =
versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
}
}
}
Please help me with this or at least give me a clue why this should be happening.

Answer 1

I ended creating another project, installing all the repository and it worked.
Still, don't know why it was happening in the first place.

Answer 2

you should change "x85_64" -> "x86_64" in the applicationVariants.all setting

Answer 3

Debuging here I added a line:
println abi
before the output.versionCodeOverride line and saw the abi needed. Then, added the abi on line def versionCodes. It ends like:
def versionCodes = ["armeabi-v7a":1, "x86":2, "arm64-v8a":3, "x86_64":4]