Version 2 (modified by anonymous, 12 years ago) (diff)


Error Messages


Error and warning dialogs

Unknown host

When you download data from or upload data to the OSM server JOSM tries to establish a connection with the OSM server. If it can't resolve the host name of the OSM server, it displays the following error message:

How to resolve

  • check the URL displayed in the dialog (in the example above it's
  • make sure your Help/Preferences include a valid URL to the OSM server. The standard URL is

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