A problem occurred evaluating project ':cloud_firestore'.

[farukoflaz]

FAILURE: Build failed with an exception.

• Where:
  Build file 'C:\development\flutter.pub-cache\hosted\pub.dartlang.org\cloud_firestore-0.16.0\android\build.gradle' line: 41

• What went wrong:
  A problem occurred evaluating project ':cloud_firestore'.

build_2yq8w8slntfd1pcrdfbqqhulb$_run_closure2$_closure4

Lines of codes in build.gradle as follows

39   android {
40     compileSdkVersion  29
41     compileOptions {
42         sourceCompatibility JavaVersion.VERSION_1_8
43         targetCompatibility JavaVersion.VERSION_1_8
44     }

What would be the solution? I appreciate your help.