<p>I am using LEGO EV3 on windows 8.1 eclipse Neon. When I try to launch the class as a LeJos application I get this error.</p>

<pre><code>IP address is /10.0.1.1
Creating the jar file or uploading the program failed
java.rmi.ConnectException: Connection refused to host: 10.0.1.1; nested exception is: 
    java.net.ConnectException: Connection timed out: connect
Caused by java.net.ConnectException: Connection timed out: connect
See Eclipse error log for detailed stack trace.
Creating the jar file or uploading the program failed
java.rmi.ConnectException: Connection refused to host: 10.0.1.1; nested exception is: 
    java.net.ConnectException: Connection timed out: connect
Caused by java.net.ConnectException: Connection timed out: connect
See Eclipse error log for detailed stack trace.
</code></pre>

CC BY-SA 4.0
2020-06-20T13:12:17.253Z
I’m voting to close this question because we can't help with general support for this kind of thing.
mindstormsboi
CC BY-SA 3.0
2017-05-10T14:56:36.203Z
I would suggest asking on the LeJOS forum: https://lejos.sourceforge.io/forum/viewforum.php?f=18
David Lechner
CC BY-SA 3.0
2017-05-10T19:47:00.960Z
I suspect that you can't use it with this version of Windows. It's not compatible. Try using another version of Windows.
Masis Habring
<ev3><lejos>
EV3 connection problem via USB on Windows 8.1
user8756
# EV3 connection problem via USB on Windows 8.1

(Asked by: username_0 on 2017-05-10)

I am using LEGO EV3 on windows 8.1 eclipse Neon. When I try to launch the class as a LeJos application I get this error.
IP address is /10.0.1.1
Creating the jar file or uploading the program failed
java.rmi.ConnectException: Connection refused to host: 10.0.1.1; nested exception is: 
    java.net.ConnectException: Connection timed out: connect
Caused by java.net.ConnectException: Connection timed out: connect
See Eclipse error log for detailed stack trace.
Creating the jar file or uploading the program failed
java.rmi.ConnectException: Connection refused to host: 10.0.1.1; nested exception is: 
    java.net.ConnectException: Connection timed out: connect
Caused by java.net.ConnectException: Connection timed out: connect
See Eclipse error log for detailed stack trace.

**Tags:** ev3, lejos

> **Comments:**
> **username_2**: I would suggest asking on the LeJOS forum: https://lejos.sourceforge.io/forum/viewforum.php?f=18  
> **username_3**: I suspect that you can't use it with this version of Windows. It's not compatible. Try using another version of Windows.  
> **username_1**: I’m voting to close this question because we can't help with general support for this kind of thing.  

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## 0 answers

