title: In a ReactNative project ! Why My ANDROID Gradle versions are different
body: <p>in <code>Build.gradle</code> </p>
  
  <pre><code>dependencies {
      classpath 'com.android.tools.build:gradle:2.3.3'
  }
  </code></pre>
  
  <p>where as in <code>graddle-wrapper.properties</code>, i have</p>
  
  <pre><code>distributionUrl=https\://services.gradle.org/distributions/gradle-3.5.1-all.zip
  </code></pre>
  
  <p>where these both are different? 
  Can they cause an error being different in version?
  please brief me in details.Thank you.</p>