Failed to resolve: com.android.support:appcompat-v7 24.0.1

Question

I have searched around a lot but I cannot really find a post that helps I am somewhat new to android so some of this goes over my head. Anyway, my problems started when I go

Answer 1

Change a character - to :

compile 'com.android.support:appcompat-v7:24.2.1'

rather than

compile 'com.android.support:appcompat-v7-24.2.1'

Answer 2

try

  compile 'com.android.support:appcompat-v7:24.2.1'

EDIT

For sdk 27

buildToolsVersion "27.0.3"

implementation "com.android.support:appcompat-v7:27.1.1"

Answer 3

Try adding jcenter like this way

repositories {
    jcenter {
        url "http://jcenter.bintray.com/"
    }
}

Rather than

  repositories {
        jcenter()
    }

Answer 4

Make sure that this folder exists:

\your-android-sdk\extras\android\m2repository\com\android\support\appcompat-v7\24.0.1

Of course, 24.0.1 should be replaced by the latest version.

I had this problem because I occasionally renamed 24.0.1 to something else and so the required folder couldn't be found.

Answer 5

In build.gradle in all projects, add Marvel and add this URL 'https://maven.google.com'

Answer 6

You can also write like this:

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