Gradle Sync Failed Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.3/gradle-3.1.3.pom'

Question

I am unable to build a project in Android Studio and I am receiving the following errors.

1. Gradle Sync Failed.
2. Could not GET \'https://dl.google.com/dl

Answer 1

In addition to @mhaseebn answer I have deleted proxy entries in C:\Users<account_name>.gradle\gradle.properties of windows machine worked for me

Answer 2

i had the same problem on mac, remove http proxy setting from .gradle file in user directory

Answer 3

For me, all I had to do was go to C:\Users<account_name>.gradle\gradle.properties in Windows Explorer and replace the file contents with:

## For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
#
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
# Default value: -Xmx1024m -XX:MaxPermSize=256m
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
#
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
systemProp.http.nonProxyHosts=
systemProp.http.proxyHost=
systemProp.http.proxyPassword=
systemProp.http.proxyPort=80
systemProp.http.proxyUser=
systemProp.https.nonProxyHosts=
systemProp.https.proxyHost=
systemProp.https.proxyPassword=
systemProp.https.proxyPort=80
systemProp.https.proxyUser=

Then sync my gradle and accept settings and all started working well.

Answer 4

go to file>settings and find http proxy click on manual proxy configuration and select http

• host name: fodev.org
• port : 8118

Answer 5

I found the solution.

• The problem was I set proxy details of my University proxy server for internet access in Android Studio. When this problem appeared I tried build the project with proxy on internet connection with proxy but it did not work.
• Then I removed the proxy from Android Studio preferences and connected to non-proxy internet connection but the problem did not disappear.
• Then I Googled a lot and came here but could not find the root cause.
• I updated AS from 3.1.3 to 3.2 but the problem still persisted.
• Finally, I started looking for hidden proxy server details in AS and found them in gradle.properties file located Gradle -> Resource Bundle 'gradle' -> gradle.properties.
• Deleted the proxy server details in this file and ran the build with successful completion after performing some packages update on the suggestions Android Studio.

Bingo!