Bereaksi Level API Metro Asli 30

// in ./android/build.gradle
ext {
  buildToolsVersion = "30.0.2" // <-- 
  minSdkVersion = 21
  compileSdkVersion = 30 // <--
  targetSdkVersion = 30 // <--
  ndkVersion = "20.1.5948944"
}
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