Error while call ionicbuild android

ionic-v1
1

Already set

ionic-hello-world@ ionic:build D:\Projects\testingApp
ionic-app-scripts build

[17:40:12] ionic-app-scripts 1.0.0
[17:40:12] build dev started …
[17:40:12] clean started …
[17:40:12] clean finished in 6 ms
[17:40:12] copy started …
[17:40:12] transpile started …
[17:40:15] transpile finished in 2.95 s
[17:40:15] webpack started …
[17:40:15] copy finished in 3.11 s
[17:40:23] webpack finished in 8.18 s
[17:40:23] sass started …
[17:40:24] sass finished in 997 ms
[17:40:24] build dev finished in 12.15 s
ANDROID_HOME=D:\sdk1

JAVA_HOME=C:\Program Files\Java\jdk1.8.0_121

Subproject Path: CordovaLib

Downloading https://services.gradle.org/distributions/gradle-3.4-rc-3-all.zip

Exception in thread “main” java.lang.RuntimeException: java.net.UnknownHostExcep
tion: services.gradle.org
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAcc
essManager.java:78)
at org.gradle.wrapper.Install.createDist(Install.java:47)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)
Caused by: java.net.UnknownHostException: services.gradle.org
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java
:184)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173
)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewH
ttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConn
ection.java:1138)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConne
ction.java:1032)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect
(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLCo
nnection.java:1546)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:1474)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Http
sURLConnectionImpl.java:254)
at org.gradle.wrapper.Download.downloadInternal(Download.java:59)
at org.gradle.wrapper.Download.download(Download.java:45)
at org.gradle.wrapper.Install$1.call(Install.java:60)
at org.gradle.wrapper.Install$1.call(Install.java:47)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAcc
essManager.java:65)
… 3 more

Error: cmd: Command failed with exit code 1 Error output:
Exception in thread “main” java.lang.RuntimeException: java.net.UnknownHostExcep
tion: services.gradle.org
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAcc
essManager.java:78)
at org.gradle.wrapper.Install.createDist(Install.java:47)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48)
Caused by: java.net.UnknownHostException: services.gradle.org
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java
:184)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173
)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewH
ttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConn
ection.java:1138)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConne
ction.java:1032)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect
(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLCo
nnection.java:1546)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon
nection.java:1474)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Http
sURLConnectionImpl.java:254)
at org.gradle.wrapper.Download.downloadInternal(Download.java:59)
at org.gradle.wrapper.Download.download(Download.java:45)
at org.gradle.wrapper.Install$1.call(Install.java:60)
at org.gradle.wrapper.Install$1.call(Install.java:47)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAcc
essManager.java:65)
… 3 more

2

Delete your existing gradle file that is located in C:\Users{YOUR USERNAME}.gradle\wrapper\dists
And find gradle-3.4-rc-3-all folder.
Delete this and run the ionic build android . It should solve the problem

3

thanks @sarveshamrit,
working now but using different solution,
set proxy for java using in environment variable on windows
JAVA_OPTS="-Dhttp.proxyHost=xx.xx.xx.xx -Dhttp.proxyPort=xxxx -Dhttps.proxyHost=xx.xx.xx.xx -Dhttps.proxyPort=xxxx