Unable to build the project

[BiplopDey]

ERROR: Failed to resolve: com.android.support:design:24.2.0
Add Google Maven repository and sync project
Show in Project Structure dialog
Affected Modules: app

ERROR: Failed to resolve: com.android.support:appcompat-v7:24.2.0
Add Google Maven repository and sync project
Show in Project Structure dialog
Affected Modules: app

[ggichure]

add google maven to your root level gradle

    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com"
        }
        
    }```


update your android support dependencies to 28.0.0 and sync.