unknown property 'supportLibVersion' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler

Question

I am getting following error

Could not get unknown property 'supportLibVersion' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHand

I am working on react-native application and react-native-maps dependencies are below in which I am getting error

 dependencies {
      def supportLibMajorVersion = supportLibVersion.split('\\.')[0] as int
      def appCompatLibName =  (supportLibMajorVersion < 20) ? "androidx.appcompat:appcompat" : "com.android.support:appcompat-v7"
      implementation "$appCompatLibName:$supportLibVersion"
      implementation('com.facebook.react:react-native:+') {
        exclude group: 'com.android.support'
      }
      implementation "com.google.android.gms:play-services-base:${safeExtGet('playServicesVersion', '16.1.0')}"
      implementation "com.google.android.gms:play-services-maps:${safeExtGet('playServicesVersion', '16.1.0')}"
      implementation 'com.google.maps.android:android-maps-utils:0.5'
    }

Anyone have idea what is wrong here?

The error in terminal is

FAILURE: Build failed with an exception.

Where:
Build file 'D:\react native\abhishek\Gwala\node_modules\react-native-maps\lib\android\build.gradle' line: 20

What went wrong:
A problem occurred evaluating project ':react-native-maps'.
Could not get unknown property 'supportLibVersion' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

line 20 is

def supportLibMajorVersion = supportLibVersion.split('\\.')[0] as int

Impassable

Answer 1

Add supportLibVersion = "28.0.0" inside android/build.gradle -> ext

example:

ext {
  buildToolsVersion = "28.0.3"
  minSdkVersion = 16
  compileSdkVersion = 28
  targetSdkVersion = 28
  supportLibVersion = "28.0.0"
}

Couldst

Hi @Dhaval, thanks for your answer. Would you mind editing your post with an explanation that can teach others how your answer solves the problem in question? – Allow

worked for me. just add supportLibVersion = "28.0.0" to ext section in build.gradle file. – Heathenize

Thanks. To make things clearer, the build.gradle file that is to be edited is the one in android, not in android/app. android/build.gradle has buildscript { ext {} } on top. – Valora

@Mahdi Thanks after struggle two days finally get an answer, is this will work fine in ios also – Paramedical

@Mahdi if i am creating new project and add react-native-maps then it's working fine if i am using my old project then i am getting error. i don't know why – Paramedical

Answer 2

Add supportLibVersion = "28.0.0" to buildscript in android/build.gradle

buildscript {
    ext {
        buildToolsVersion = "28.0.3"
        minSdkVersion = 16
        compileSdkVersion = 28
        targetSdkVersion = 28
        supportLibVersion = "28.0.0"  // <=== add this line
    }

    ...
}

https://github.com/react-native-community/react-native-maps/issues/3108#issuecomment-552795543

Embryectomy

Now that we are forced to change compileSdkVersion to 29, what should we do with the rest of the properties? Keep them as they were? (28.0.0) Increase them? Thanks a lot! – Vicinity

Answer 3

Try installing it directly from github:

npm install --save git+https://[email protected]/react-native-community/react-native-maps.git

Weka

Answer 4

I solved this issue after these steps:

1. Add this line to \node_modules\react-native-maps\lib\android\build.gradle -- line: 20

   def supportLibVersion = safeExtGet('supportLibVersion', '28.0.0')

2. In the AndroidManifest.xml under <application>:

   <uses-library android:name="org.apache.http.legacy" android:required="false"/>

Coupe

Answer 5

Add below line in node_modules/react-native-maps/lib/android/build.gradle:

under dependencies

def supportLibVersion = safeExtGet('supportLibVersion', '28.0.0')

Example:
https://github.com/react-native-community/react-native-maps/blob/master/lib/android/build.gradle

Hope it helps.

Just

Answer 6

In your file build.gradle inside the android directory

(.../YourApp/android/build.gradle)

find the ext section and add

supportLibVersion = "28.0.0" ext { ... supportLibVersion = "28.0.0" }

that should do the work.

Woodson