Gradle sync failed: Connection refused

Question

So I just installed Android Studio again after a long time and it asked me to configure the proxy, so I did. I tested the connection and it worked.

Then it asked me

Answer 1

This should work:

1. Go to 'Gradle Scripts'

2. Then go to 'gradle.properties'.

3. There you will see proxy settings something like:

   systemProp.http.proxyHost=[YOUR PROXY]

   systemProp.http.proxyPort=[PORT]

   As you may see this is for 'http' only.

4. Just add the same for 'https':

   systemProp.https.proxyHost=[YOUR PROXY]

   systemProp.https.proxyPort=[PORT]

   Worked for me.

Answer 2

A lot of people suggested changing proxy settings but that was not my problem. At the time of writing com.android.tools.build:gradle:3.3.2 was recently released and i was not able to update to that from my network.

However , com.android.tools.build:gradle:3.3.1 was available and it no longer threw that errror

Answer 3

I have the same problem.can't connect to socks proxy connection refused. try

1.turn off vpn

2.File -> Invalidate Caches / Restart

This operation can fix this problem

Answer 4

When I got this error I used Charles Proxy app(even thought Charles Proxy was completely closed). To solve it I just disabled SSL Proxying inside Charles Proxy

After that I got

Cause: unable to find valid certification path to requested target
//and
Connection refused

To solve it just close Charles Proxy(with disabled(stopped) SSL Proxying) and restart Android Studio or analyse traffic and exclude unnecessary host(Proxy -> SSL Proxy Settings... -> Exclude block). In my case it was

<some_digits>.cloudfront.net

Answer 5

File > Settings... > Buil, Execution, Deployment > Gradle >Android Studio Check "Enable embedded Maven repository"

É seja feliz. Por nada!

Answer 6

You should configure Proxy settings on Android Studios menu (File | Settings). Another strategy is to configure the file gradle.properties.

So, add theses lines for the end of gradle.properties located on the app folder base.

---

systemProp.http.proxyPassword=[PASSWORD]
systemProp.http.proxyHost=[IP ADDRESS]
systemProp.https.proxyPort=[PORT, TYPICALLY 3128]
systemProp.https.proxyUser=[USERNAME]
systemProp.https.proxyHost=[IP ADDRESS]
systemProp.https.proxyPassword=[PASSWORD]
systemProp.http.proxyPort=[PORT, TYPICALLY 3128]
systemProp.http.proxyUser=[USERNAME]

Pay attention, the passwords and others values that have special chars must have slash character such as (\#) and so on.