Unsupported version error opening older .osm files

[katpatuka]

I get following error trying to open some older .osm files (in version 7054):

ERROR: org.openstreetmap.josm.io.IllegalDataException: 
Unsupported version: 0.5 (at line 2, column 51). 
Cause: org.openstreetmap.josm.io.OsmReader$OsmParsingException: 
Unsupported version: 0.5 (at line 2, column 51)

Files were last saved using version 6502 or earlier. See attachment (file with lighthouse locations in Turkey).

[katpatuka]

file throwing error "Unsupported version: 0.5" while trying to open

[skyper]

Just for the record. Can reproduce:

USER@HOST:~$ java -jar josm-latest.jar 
INFO: Running plugin update after JOSM upgrade. Automatic update at startup is enabled.
INFO: loading plugin 'reverter' (version 30416)
INFO: RemoteControl: adding command "revert_changeset" (handled by RevertChangesetHandler)
INFO: loading plugin 'jts' (version 30416)
INFO: loading plugin 'utilsplugin2' (version 30419)
INFO: loading plugin 'undelete' (version 30416)
INFO: loading plugin 'imagery-xml-bounds' (version 30416)
INFO: loading plugin 'mirrored_download' (version 30416)
INFO: loading plugin 'photoadjust' (version 30428)
INFO: loading plugin 'todo' (version 29154)
INFO: loading plugin 'wikipedia' (version 30416)
INFO: loading plugin 'OpeningHoursEditor' (version 30416)
INFO: loading plugin 'notes' (version v0.9.2)
INFO: loading plugin 'terracer' (version 30416)
INFO: loading plugin 'conflation' (version 0.1.6)
INFO: RemoteControl::Accepting connections on port 8111
INFO: RemoteControl::Accepting secure connections on port 8112
INFO: GET https://api.openstreetmap.org/api/0.6/user/details
INFO: Message notifier active (checks every 5 minutes)
INFO: GET https://api.openstreetmap.org/api/0.6/user/details (get number of unread messages)
INFO: Open file: $HOME/fener.osm (3850 bytes)
ERROR: org.openstreetmap.josm.io.IllegalDataException: Unsupported version: 0.5 (at line 2, column 51). Cause: org.openstreetmap.josm.io.OsmReader$OsmParsingException: Unsupported version: 0.5 (at line 2, column 51)
org.openstreetmap.josm.io.IllegalDataException: Unsupported version: 0.5 (at line 2, column 51)
	at org.openstreetmap.josm.io.OsmReader.doParseDataSet(OsmReader.java:611)
	at org.openstreetmap.josm.io.OsmReader.parseDataSet(OsmReader.java:642)
	at org.openstreetmap.josm.io.OsmImporter.parseDataSet(OsmImporter.java:120)
	at org.openstreetmap.josm.io.OsmImporter.loadLayer(OsmImporter.java:110)
	at org.openstreetmap.josm.io.OsmImporter.importData(OsmImporter.java:88)
	at org.openstreetmap.josm.io.OsmImporter.importData(OsmImporter.java:65)
	at org.openstreetmap.josm.io.FileImporter.importDataHandleExceptions(FileImporter.java:70)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.importData(OpenFileAction.java:332)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.realRun(OpenFileAction.java:277)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:82)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:150)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: org.openstreetmap.josm.io.OsmReader$OsmParsingException: Unsupported version: 0.5 (at line 2, column 51)
	at org.openstreetmap.josm.io.OsmReader.throwException(OsmReader.java:91)
	at org.openstreetmap.josm.io.OsmReader.parseOsm(OsmReader.java:124)
	at org.openstreetmap.josm.io.OsmReader.parseRoot(OsmReader.java:112)
	at org.openstreetmap.josm.io.OsmReader.parse(OsmReader.java:98)
	at org.openstreetmap.josm.io.OsmReader.doParseDataSet(OsmReader.java:592)
	... 16 more

epository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-05-03 01:32:45
Last Changed Author: bastiK
Revision: 7054
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-05-03 01:07:19 +0200 (Sat, 03 May 2014)
Last Changed Rev: 7054

Identification: JOSM/1.5 (7054 en) Linux Debian GNU/Linux 7.5 (wheezy)
Memory Usage: 175 MB / 881 MB (101 MB allocated, but free)
Java version: 1.7.0_25, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u25-2.3.10-1~deb7u1

[Don-vip]

Yes I have disabled support of API 0.5 in r7013. There's no point in keeping it, API 0.6 is live since 2009. Please update your files.

[katpatuka]

Replying to Don-vip:

Yes I have disabled support of API 0.5 in r7013. There's no point in keeping it, API 0.6 is live since 2009. Please update your files.

So how shall I update my files if I can't open them in version 7054?

I can of course open them in version 6502 - I tried to save them from there again in the hope that they'd be saved in magic API 0.6 version but nope: ver. 7054 still couldn't open them...

Did I miss something or am I just blind?

[Don-vip]

You can try to change the version directly in .osm file, differences are minor.

[Don-vip]

Ticket #11239 has been marked as a duplicate of this ticket.