#16340 closed defect (worksforme)

UnknownHostException when trying to run the JOSM

Reported by: syaghoub@… Owned by: syaghoub@…
Priority: normal Milestone:
Component: Core Version:
Keywords: network Cc:


I am a new user and I tried installing your application using the multiple ways you have mentioned in your website, but all of them result in the following error which seems to be related to the proxy configuration and the application not being able to access some sources, but I am not sure how to solve this. I appreciate your help on this.

The content for the help topic /Preferences/Connection could not be loaded. The error message is (untranslated):

Shakiba Yaghoubi

Attachments (3)

error JOSM.PNG (74.8 KB) - added by anonymous 10 months ago.
JOSM network error
proxy.PNG (68.4 KB) - added by anonymous 10 months ago.
Proxy setting
download.PNG (33.7 KB) - added by anonymous 10 months ago.
I cannot download

Download all attachments as: .zip

Change History (13)

comment:1 Changed 10 months ago by stoecker

That error message simply says, that the address of this server cannot be resolved. This means JOSM has completely no internet access. This can't be a proxy issue, as proxy access comes behind name resolution.

Please add the relevant information we ask for in the ticket submission page, see #16341, add full error messages, the status info, screenshots etc.

comment:2 Changed 10 months ago by stoecker

Ticket #16341 has been marked as a duplicate of this ticket.

Changed 10 months ago by anonymous

Attachment: error JOSM.PNG added

JOSM network error

Changed 10 months ago by anonymous

Attachment: proxy.PNG added

Proxy setting

Changed 10 months ago by anonymous

Attachment: download.PNG added

I cannot download

comment:3 Changed 10 months ago by anonymous

I do have internet access (from Ford motor company network if that helps). Isn't JOSM able to automatically accesses the network?
I am absolutely new to this application but I assume that I should be able to download from OSM and be able to modify it in JOSM but this is not the case as I cannot connect to the server. I was not able to validate any address manually either.

Shakiba Yaghoubi

comment:4 Changed 10 months ago by anonymous

I added 3 attachments to the ticket hoping that they help.

comment:5 Changed 10 months ago by stoecker

Can you please as requested add the status report (which contains most information we need) and how you start JOSM?

comment:6 Changed 10 months ago by anonymous

Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-05-31 00:51:20 +0200 (Thu, 31 May 2018)
Build-Date:2018-05-30 22:58:01
Relative:URL: ^/trunk

Identification: JOSM/1.5 (13878 en) Windows 10 64-Bit
OS Build number: Windows 10 Enterprise 2016 LTSB 1607 (14393)
Memory Usage: 116 MB / 247 MB (10 MB allocated, but free)
Java version: 1.8.0_171-b11, Oracle Corporation, Java HotSpot(TM) Client VM
Screen: \Display0 1366x768, \Display1 1024x768
Maximum Screen Size: 1366x768

Last errors/warnings:
- W:
- E:
- W:
- W: Already here
- W: Already here
- E: Error initializing test ApiCapabilitiesTest:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- W: Region [TMS_BLOCK_v2] Resetting cache
- W:$BugReportSenderException: Cause:
- W:$BugReportSenderException: Cause:

lastDirectory=%UserProfile%\Downloads[resource://styles/standard/elemstyles.mapcss, resource://styles/standard/potlatch2.mapcss],y=91,width=1000,height=600,y=0,width=600,height=400

comment:7 Changed 10 months ago by stoecker

Can you please tell me more about your system:

a) Do you have IPv4, IPv6 or both and which do you normally use. You can verify this by calling ip4.stoecker,, pages.
b) Try resetting preferences (see Help/ResetPreferences).
c) Did it work once or never?

comment:8 Changed 10 months ago by Don-vip

Keywords: network added
Owner: changed from team to syaghoub@…
Priority: majornormal
Status: newneedinfo
Summary: Error when trying to run the JOSMUnknownHostException when trying to run the JOSM

comment:9 Changed 10 months ago by anonymous

I resolved the issue by manually setting the proxy host and port.

comment:10 Changed 10 months ago by stoecker

Resolution: worksforme
Status: needinfoclosed

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