Cannot connect to jcenter() in android studio

Question

I'm trying to import MusicBobber library in android studio. I had download and import the example project but when I sync the project this error showed up:

Error:A problem occurred configuring project ':app'.
    A problem occurred configuring project ':audiowidget'.
    Could not download support-media-compat.aar (com.android.support:support-media-compat:24.2.0)
    Could not get resource 'https://jcenter.bintray.com/com/android/support/support-media-compat/24.2.0/support-media-compat-24.2.0.aar'.  
    Could not GET 'https://jcenter.bintray.com/com/android/support/support-media-compat/24.2.0/support-media-compat-24.2.0.aar'.  
    Connection to 'https://jcenter.bintray.com' refused

when I try to open the https://jcenter.bintray.com , site will open with no problem. also I'm using freegate for proxy. where is the problem and what should I do?

Dogwatch

The problem is that your access to the jcenter is limited. So you should use an appropriate proxy software like freegate, hotspot etc. Also you should declare your proxy configuration in the Android Studio, for this purpose, there are different approaches. like HTTP Proxy or configuring the gradle.properties file manually. – Conformist

I use freegate and proxy settings are set. no difference – Dogwatch

In the "HTTP Proxy" section click on Check connection and enter the URL jcenter.bintray.com/com/android/support/support-media-compat/… for test. If everything is alright, then you should see Connection successful prompt. Check it. – Conformist

no connection, the error is Problem with connection: no protocol: jcenter.bintray.com/com/android/support/support-media-compat‌​/… – Dogwatch

Check this one: link Notice that this URL start with https protocol. – Conformist

this is ok: Connection successful – Dogwatch

Let us continue this discussion in chat. – Dogwatch

No. These libraries are not in jcenter but locally in your SDK. Did you update the SDK? – Khania

yes SDK is updated to last versions – Dogwatch

Finally I run the project successfully, please review my solution. – Conformist

Answer 1

In Android Studio, go to

File> Settings...> Appearance & Behavior> System Settings> HTTP Proxy

then choose Auto-detect proxy settings

finally Synchronize your project.

Note:

Make sure your SDK and Android Studio and gradle are update. I run the project successfully with these system's configurations:

• Android Studio 2.1.3
• gradle-2.14.1
• SDK:
• Android Support Repository 32
• Google Play services 32
• Android Repository 32

Conformist

Answer 2

Replacing

jcenter() with maven { url 'https://maven.aliyun.com/repository/jcenter' }

worked for me.

Raddi

It seems like aliyun is a mirror of default maven repository url which is using alibaba cloud, may also improve download speed. – Yeargain

A real hero, thank you. – Decontaminate

Its works for me. 👍 – Plataea