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I'm trying to run react-native run-android but I continuously get this error.I am running on emulator . I started the app using react-native init.

PS: I am running on proxy.

When I am trying to run

react-native run-android

I get: 

FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'AwesomeProject'. > Could not resolve all dependencies for configuration ':classpath'. > Could not resolve com.android.tools.build:gradle:2.2.3. Required by: :AwesomeProject:unspecified > Could not resolve com.android.tools.build:gradle:2.2.3. > Could not get resource 'https://jcenter.bintray.com/com/android/tool /build/gradle/2.2.3/gradle-2.2.3.pom'. > Could not GET 'https://jcenter.bintray.com/com/android/tools/buil /gradle/2.2.3/gradle-2.2.3.pom'. Received status code 407 from server: Proxy Authentication Required

When I am trying to run

directly in Android Studio

I get: 

Error:Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/2.2.3/gradle- 2.2.3.pom'. Received status code 407 from server: Proxy Authentication Required <a href="toggle.offline.mode">Enable Gradle 'offline mode' and sync project</a>

I have my node_modules installed and I'm not sure what else to try, I've been googling for the last 4 hours and have come up with nothing.

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3
  • You have a Proxy Authentication Commented Oct 16, 2017 at 20:08
  • for android studio check this stackoverflow.com/questions/26916951/… Commented Oct 17, 2017 at 3:26
  • The problem is actually quite simple; Your computer can't retrieve the server that has the gradle build tools (no matter you if you use Studio or React Native to compile). Simply using a VPN, or a different internet connection should resolve your issue. Commented Oct 30, 2017 at 17:09

4 Answers 4

Reset to default
3

set your proxy details Inside sdk manager

AndroidStudio->tools->Android->SDKManager->system settings->Http Proxy

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3 Comments

please check connection as mentioned here stackoverflow.com/a/26919995/5706413
I did auto detect proxy settings.
connection successful
2

your problem is not related to npm and node. you have some gradle problems.check if you can access the URL from browser?

https://jcenter.bintray.com/com/android/tools/build/gradle/2.2.3/gradle- 2.2.3.pom

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1 Comment

Yes, I can access the link. Now can you please tell me what can be the problem and how to correct it ?
2
+25

It clearly says <a href="toggle.offline.mode">Enable Gradle 'offline mode' and sync project</a>. Have you tried enabling offline mode? If not, try this:

Go to File -> Settings.

And open the 'Build,Execution,Deployment',Then open the 'Build Tools' -> 'Gradle'.

Then uncheck "Offline work" on the right.

Click the 'OK' button.

Then Rebuild the Project.

For Mac go to AndroidStudio -> Preferences, rest is same.

ref.: https://stackoverflow.com/a/30794890/2895571

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2

Try adding these in your gradle.properties:

systemProp.http.proxyHost=proxyURL systemProp.http.proxyPort=proxyPort systemProp.http.proxyUser=USER systemProp.http.proxyPassword=PASSWORD systemProp.https.proxyHost=proxyUrl systemProp.https.proxyPort=proxyPort systemProp.https.proxyUser=USER systemProp.https.proxyPassword=PASSWORD
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