Rosjava install problem ./gradlew install

asked 2012-09-10 06:27:52 -0600

LargeBearCat
36 ●2 ●2 ●5

Hi, I am trying to install ROSJava (Fuerte). I have already installed the regular ROS (Fuerte). I am working through the rosjava building steps (http://docs.rosjava.googlecode.com/hg/rosjava_core/html/building.html).

When I get to ./gradlew install it shows a lot of Java errors:

Downloading http://services.gradle.org/distributions/gradle-1.0-milestone-9-bin.zip
 Exception in thread "main" java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
    at java.net.Socket.connect(Socket.java:579)
    at java.net.Socket.connect(Socket.java:528)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:378)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:473)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:203)
    at sun.net.www.http.HttpClient.New(HttpClient.java:290)
    at sun.net.www.http.HttpClient.New(HttpClient.java:306)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:931)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1299)
    at org.gradle.wrapper.Download.downloadInternal(Download.java:61)
    at org.gradle.wrapper.Download.download(Download.java:49)
    at org.gradle.wrapper.Install.createDist(Install.java:51)
    at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
    at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:47)
 I have installed the Oracle Java JDK, set JAVA_HOME with PATH="....:$JAVA_HOME/bin", Mercurial and Maven. 
 Help!

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answered 2012-09-11 02:27:47 -0600

KruseT

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Gradle needs an internet connection. Gradle tries to donwnload that file, but got a connection error. You can also try manually:

wget http://services.gradle.org/distributions/gradle-1.0-milestone-9-bin.zip

if that works, the gradle command should also work.

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answered 2012-09-12 02:56:46 -0600

LargeBearCat
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Thanks for the answer.

The solution is even more trivial. Turns out the Ubuntu proxy server settings is not directly used by rosjava.

--> How/Where can I specify proxy settings in rosjava? Could not google it up so far.

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Ok, not rosjava proxy settings but gradle proxy settings. The download has now started, hope no more new errors.

LargeBearCat ( 2012-09-12 03:10:06 -0600 )edit

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answered 2013-06-25 11:22:08 -0600

Rene Enriquez
1

I solved adding proxy parameters of this way

./gradlew -Dhttp.proxyHost=10.12.0.9 -Dhttp.proxyPort=8002 clean build

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answered 2012-10-05 20:35:50 -0600

Jalan

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updated 2012-10-06 06:03:52 -0600

Hey,

How did you solve the problem? I am still stuck with same problem as yours. How did you specify proxy settings for gradle?

I am using Ubuntu 12.04 and ROS Fuerte.

Thanks a lot in advance. :)

EDIT: Hey, Sorry for the trouble. I figured out finally. :)

You just have to add this to your ~/.bashrc or ~/.zshrc configuration file:

export JAVA_OPTS='-Dhttp.proxyHost=proxyhostURL -Dhttp.proxyPort=proxyPortNumber -Dhttp.proxyUser=someUserName -Dhttp.proxyPassword=somePassword'

Now it should work flawlessly. :)

Links: [1] [Gradle Installation](http://www.gradle.org/installation) (Refer section: JVM OPTIONS)

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