Android Studio: Gradle sync failed: Connection timed out: connect

Question

My Android Studio was working fine till morning, but since tonight I get error saying "Gradle sync failed: Connection timed out: connect. If you are behind an HTTP proxy, please configure the proxy settings either in IDE or Gradle.". I am not using any proxy server. Even the option for HTTP proxy is set to "no proxy". I have no idea how to get this working. I tried giving public access to Android Studio in firewall but it didn't work.

Any help/solution is welcome.

P.S. My Android Studio version is 2.2.3

Thank you!

I have the same issue, very strange – Prilaga Feb 28 '17 at 18:26 — Prilaga, Feb 28 '17 at 18:26
before trying any solution, use a proxy or vpn. – Ayub Sep 05 '17 at 05:16 — Ayub, Sep 05 '17 at 05:16
anybody has a solution, please hep me! – Vikas Pandey Feb 04 '19 at 15:12 — Vikas Pandey, Feb 04 '19 at 15:12

score 24 · Answer 1 · answered Apr 10 '17 at 21:37

24

I copied a project that was created else where. After removing these proxy credentials:

systemProp.http.proxyPassword=your_password

systemProp.http.proxyHost=host_Ip_address

systemProp.http.proxyUser=your_username

systemProp.http.proxyPort=port_number

in the gradle.properties, it worked like a charm.

answered Apr 10 '17 at 21:37

bibspark

241
1
2

1

Same issue happened to me , Resolved just by following this method .Also make sure that No proxy is selected in to File --> Settings -->System Settings --> HTTP Proxy . – Adi Jul 18 '19 at 07:23

score 15 · Accepted Answer · edited May 23 '17 at 12:34

15

I think it's a network issue. My project currently fails to build unless I pass the --offline argument to gradle. I think the S3 outage is impacting repos hosting dependencies.

Try ./gradlew tasks --offline

Or, to make android studio run in offline mode, follow the instructions: https://stackoverflow.com/a/32173577/1043518

edited May 23 '17 at 12:34

Community

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1

answered Feb 28 '17 at 19:21

jtdressel

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I guess you're right, going offline fixed it. I guess some of my gradle dependencies are affected from the outage that you're talking about. – ark Feb 28 '17 at 19:30

score 11 · Answer 3 · answered Mar 10 '17 at 00:25

11

For me it was the firewall. Definitely, only that. After adding Android Studio to it's whitelist everything is working like a charm.

answered Mar 10 '17 at 00:25

P.Sierpinski

111
5

score 10 · Answer 4 · answered Aug 18 '17 at 08:56

10

Do not forget proxy for https in gradle.properties

systemProp.http.proxyHost=your.proxy.host
systemProp.http.proxyPort=8080
systemProp.http.proxyUser=username
systemProp.http.proxyPassword=password
#
# DO NOT forget https proxy, too!
#
systemProp.https.proxyHost=your.proxy.host
systemProp.https.proxyPort=8080
systemProp.https.proxyUser=username
systemProp.https.proxyPassword=password

answered Aug 18 '17 at 08:56

diewland

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He is not using any proxy. – Anton Malmygin Aug 18 '17 at 08:59
@AntonMalmygin my mistake, sorry. – diewland Aug 18 '17 at 09:13

score 10 · Answer 5 · edited Mar 16 '19 at 21:47

10

I got the very same problem.

In my case, I started my android project on campus. Everything was fine then. When came home and started using the wifi I got the same problem (Gradle sync failed: Connection timed out).

All did is modify gradle.properties file under Gradle Scripts. I just removed the proxy settings that were stored in that file. Everything's back to normal now.

Below is an image of where to find the file:

edited Mar 16 '19 at 21:47

tomerpacific

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answered Mar 16 '19 at 13:45

Chris Claude

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25

1

Thanks, had the exact same issue, seems that when i installed android studio back in 2018 it had used the proxy, forgot about it when I started working on this machine again recently. – Marco Aug 04 '19 at 21:21

score 4 · Answer 6 · answered Jul 06 '18 at 20:42

If your Proxy settings is set to No Proxy [Based on how i solved this issue in my case] check out gradle.properties (Global properties) and clear proxy lines.

#systemProp.https.proxyPort=port
#systemProp.http.proxyHost=proxy
org.gradle.jvmargs=-Xmx2048m -XX\:MaxPermSize\=512m -XX\:+HeapDumpOnOutOfMemoryError -Dfile.encoding\=UTF-8 -Djava.net.preferIPv4Stack\=true
org.gradle.daemon=true
#systemProp.https.proxyHost=proxy
org.gradle.configureondemand=false
#systemProp.http.proxyPort=port
android.enableBuildCache=true

score 3 · Answer 7 · answered Aug 20 '20 at 11:19

3

Clear proxy setting at gradle.properties (Global properties)

answered Aug 20 '20 at 11:19

Heshan Weerasooriya

49
4

score 2 · Answer 8 · answered Aug 17 '18 at 10:10

2

It can be a network issue sometimes. You can try to resolve it by turning off your "Firewall Protection". Also you need to turn off Firewall Protection from Antivirus.

answered Aug 17 '18 at 10:10

Siddhi Rajput

21
1

score 2 · Answer 9 · answered Oct 20 '18 at 07:07

2

There are several countries that their IP's are blocked by Android Studio so if you feel your IP is one of them just simply connect to a VPN service.

answered Oct 20 '18 at 07:07

P.Iravani

39
1

From Review: Hi, this post does not seem to provide a [quality answer](https://stackoverflow.com/help/how-to-answer) to the question. Please either edit your answer and improve it, or just post it as a comment. – sɐunıɔןɐqɐp Oct 20 '18 at 07:48

Glenn Michael Mejias · Answer 10 · 2018-12-19T06:58:08.247

2

I solved my problem by turning off my anti-virus (avast)

edited Dec 19 '18 at 06:58

answered Dec 06 '18 at 07:49

Glenn Michael Mejias

43
7

score 1 · Answer 11 · edited Aug 22 '18 at 00:44

1

If proxy settings are correct then go to file and click on "Invalidate Caches/Restart..." to invalidate the cache and restart android studio.

edited Aug 22 '18 at 00:44

Stephen Rauch

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answered Aug 22 '18 at 00:21

anant vikram singh

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score 1 · Answer 12 · answered Sep 12 '18 at 04:52

1

I solved it by executing cleanBuildCache in android studio

open Gradle projects tab in the right top corner of android studio under build folder double click on cleanBuildCache and then run you project

answered Sep 12 '18 at 04:52

Edalat Feizi

1,371
20
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score 1 · Answer 13 · answered Oct 16 '19 at 07:52

1

This may also happen when you don't have an internet connection on the network you are connected to . the fix would be to easily get a proper internet connection and re-sync Gradle.

answered Oct 16 '19 at 07:52

Barungi Stephen

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score 1 · Answer 14 · edited Jul 04 '20 at 11:29

1

What worked for me was removing the port settings from the Gradle.properties file. I wasn't using any proxy and that resulted in the mismatch. I commented out the following lines

systemProp.https.proxyPort=your_port

systemProp.http.proxyHost=your_proxy

edited Jul 04 '20 at 11:29

Ahwar

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answered Jul 04 '20 at 04:35

Aditi Anshu

11
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score 0 · Answer 15 · answered Oct 22 '20 at 05:21

0

Invalidate cache & restart the android studio works for me!

answered Oct 22 '20 at 05:21

Fakhar

3,946
39
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score 0 · Answer 16 · answered May 18 '22 at 03:11

0

In my situation, I use a proxy. The right way to make it work is to turn on proxy first and then launch Android Studio.

answered May 18 '22 at 03:11

Ivan J. Lee

101
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Android Studio: Gradle sync failed: Connection timed out: connect

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