error when i integrate my flutter app with firebase

Question

i run my app and its worked correctly but when i tried to integrate it with firebase it shows an error

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':app:mergeDexDebug'.

  Could not resolve all files for configuration ':app:debugRuntimeClasspath'. Failed to transform artifact 'play-services-base.aar (com.google.android.gms:play-services-base:17.0.0)' to match attributes {artifactType=android-dex, dexing-enable-desugaring=true, dexing-is-debuggable=true, dexing-min-sdk=16}. Execution failed for DexingWithClasspathTransform: C:\Users\lenovo.gradle\caches\transforms-2\files-2.1\4c0b774c09d5393feb013f0dbe753af3\play-services-base-17.0.0\jars\classes.jar. Cannot parse result path string:

Answer 1

Inside build.gradle, do the following:

Change the minSdkVersion from:

minSdkVersion 16

Into the following:

minSdkVersion 21