Failed to resolve: com.github.muhammadisa:lifemark:1.0.1

[kenplex8]

Your project looks great, just having slight trouble with the gradle file.....

with your gradle file:
the example project uses> implementation project(":lifemarklibrary")
would like to use suggested> implementation 'com.github.muhammadisa:lifemark:1.0.1'

getting error > Failed to resolve: com.github.muhammadisa:lifemark:1.0.1
Using Android Studio Artic Fox 2020.3.1

1.tried commenting out one line suggested by others in the gradle.properties

Use R8 instead of ProGuard for code shrinking.

#comment-out-for-lifemark? android.enableR8.fullMode=true
results=still getting same error.

2. replaced one line in your build.gradle (:example) with this one
   implementation 'com.github.muhammadisa:lifemark:1.0.1'
   //implementation project(":lifemarklibrary")
   build results ---------------------
   Executing tasks: [:example:assembleDebug] in project C:\krg\android\001_BestExample\del\Lifemark-master
   FAILURE: Build failed with an exception.

• What went wrong:
  Could not determine the dependencies of task ':example:compileDebugJavaWithJavac'.

Could not resolve all task dependencies for configuration ':example:debugCompileClasspath'.
Could not find com.github.muhammadisa:lifemark:1.0.1.
Required by:
project :example

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
• Get more help at https://help.gradle.org
  BUILD FAILED in 564ms

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any suggestions?
thank you, K