after josm startup, when loading an osm file, i receive the error: an unexpected error occurred.

[anonymous]

What steps will reproduce the problem?

What is the expected result?

What happens instead?

Please provide any additional information below. Attach a screenshot if possible.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-09-02 14:47:18 +0200 (Sat, 02 Sep 2017)
Build-Date:2017-09-02 20:53:16
Revision:12712
Relative:URL: ^/trunk

Identification: JOSM/1.5 (12712 en) Windows 10 64-Bit
OS Build number: Windows 10 Pro 1607 (14393)
Memory Usage: 1845 MB / 7282 MB (1075 MB allocated, but free)
Java version: 1.8.0_144-b01, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1080, \Display1 1920x1080
Maximum Screen Size: 1920x1080
Dataset consistency test: No problems found

Plugins:
+ ImportImagePlugin (33563)
+ ImproveOsm (116)
+ Mapillary (v1.5.7)
+ OpenStreetCam (104)
+ RoadSigns (33579)
+ apache-commons (33517)
+ apache-http (32699)
+ buildings_tools (33004)
+ download_along (32946)
+ ejml (32680)
+ geojson (55)
+ geotools (33380)
+ graphview (33004)
+ jna (32699)
+ jts (32699)
+ log4j (32699)
+ measurement (33088)
+ opendata (33553)
+ pbf (33568)
+ poly (33570)
+ reltoolbox (33530)
+ reverter (33572)
+ scripting (30771)
+ tageditor (33579)
+ todo (30301)
+ turnlanes (33294)
+ turnlanes-tagging (254)
+ turnrestrictions (33537)
+ utilsplugin2 (33579)
+ waydownloader (33574)

Tagging presets:
+ %UserProfile%\Documents\MapCSS\signpost.xml
+ %UserProfile%\Documents\MapCSS\statuspreset.xml
+ %UserProfile%\Documents\MapCSS\speedlimit.xml
+ %UserProfile%\Documents\MapCSS\TRpreset.xml

Map paint styles:
+ %UserProfile%\Documents\MapCSS\Detection_mapcss\FORD_SIGNS.mapcss
- %UserProfile%\Documents\MapCSS\josmfile2
- %UserProfile%\Documents\MapCSS\status.mapcss
- https://raw.githubusercontent.com/yopaseopor/traffic_signs_style_JOSM/master/Styles_Traffic_signs_AME.zip
- https://josm.openstreetmap.de/josmfile?page=Styles/Noname&zip=1
- %UserProfile%\Documents\MapCSS\turn_restrictions_v2.mapcss
- %UserProfile%\Documents\MapCSS\custom.mapcss
- %UserProfile%\Documents\MapCSS\elemstyles.mapcss
- %UserProfile%\Documents\MapCSS\turn_restrictions_v2.mapcss
- %UserProfile%\Documents\MapCSS\v4_Lane and road attributes.mapcss
- %UserProfile%\Documents\MapCSS\streets_has_no_name1
- %UserProfile%\Documents\MapCSS\V_user edits.mapcss
- %UserProfile%\Documents\MapCSS\tr_atlas\TR_atlas.mapcss
- %UserProfile%\Documents\MapCSS\TR_improveOSM\TR_improveOSM.mapcss
- %UserProfile%\Documents\MapCSS\maxspeed.mapcss
- %UserProfile%\Documents\MapCSS\customFC.mapcss

Last errors/warnings:
- E: Skipping to the next rule, because of an error:
- E: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " "/" "/ "" at line 78, column 2.
- E: Skipping to the next rule, because of an error:
- E: org.openstreetmap.josm.gui.mappaint.mapcss.parsergen.ParseException: Encountered " <IDENT> "all "" at line 104, column 54.
- W: Initializing map style %UserProfile%\Documents\MapCSS\v4_Lane and road attributes.mapcss completed in 121 ms (3 errors, 0 warnings)
- E: Failed to locate image 'maxspeed_icon.svg'
- W: Mappaint style "standard" (Speed-limit) icon "maxspeed_icon.svg" not found.
- E: Failed to locate image 'maxspeed_icon.svg'
- W: Mappaint style "standard" (maxspeed) icon "maxspeed_icon.svg" not found.
- E: Handled by bug report queue: org.openstreetmap.josm.plugins.PluginException: An error occurred in plugin ImproveOsm. Cause: java.lang.reflect.InvocationTargetException. Cause: java.lang.NoClassDefFoundError: org/openstreetmap/josm/gui/util/GuiSizesHelper. Cause: java.lang.ClassNotFoundException: org.openstreetmap.josm.gui.util.GuiSizesHelper


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (20) of main
org.openstreetmap.josm.plugins.PluginException: An error occurred in plugin ImproveOsm
	at org.openstreetmap.josm.plugins.PluginProxy.handlePluginException(PluginProxy.java:60)
	at org.openstreetmap.josm.plugins.PluginProxy.mapFrameInitialized(PluginProxy.java:71)
	at org.openstreetmap.josm.gui.MainPanel.updateContent(MainPanel.java:81)
	at org.openstreetmap.josm.gui.MainPanel$1.beforeFirstLayerAdded(MainPanel.java:160)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.realAddLayer(MainLayerManager.java:248)
	at org.openstreetmap.josm.gui.layer.LayerManager.lambda$addLayer$0(LayerManager.java:217)
	at org.openstreetmap.josm.gui.util.GuiHelper.runInEDTAndWaitWithException(GuiHelper.java:235)
	at org.openstreetmap.josm.gui.layer.LayerManager.addLayer(LayerManager.java:217)
	at org.openstreetmap.josm.gui.layer.LayerManager.addLayer(LayerManager.java:206)
	at org.openstreetmap.josm.gui.io.importexport.OsmImporter.lambda$importData$0(OsmImporter.java:104)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.WaitDispatchSupport$2.run(Unknown Source)
	at java.awt.WaitDispatchSupport$4.run(Unknown Source)
	at java.awt.WaitDispatchSupport$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.WaitDispatchSupport.enter(Unknown Source)
	at java.awt.Dialog.show(Unknown Source)
	at java.awt.Component.show(Unknown Source)
	at java.awt.Component.setVisible(Unknown Source)
	at java.awt.Window.setVisible(Unknown Source)
	at java.awt.Dialog.setVisible(Unknown Source)
	at org.openstreetmap.josm.gui.progress.swing.PleaseWaitProgressMonitor.lambda$doBeginTask$3(PleaseWaitProgressMonitor.java:256)
	at org.openstreetmap.josm.gui.progress.swing.PleaseWaitProgressMonitor.lambda$doInEDT$0(PleaseWaitProgressMonitor.java:114)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.openstreetmap.josm.plugins.PluginProxy.mapFrameInitialized(PluginProxy.java:66)
	... 45 more
Caused by: java.lang.NoClassDefFoundError: org/openstreetmap/josm/gui/util/GuiSizesHelper
	at org.openstreetmap.josm.plugins.improveosm.gui.details.comment.EditDialog.<init>(EditDialog.java:75)
	at org.openstreetmap.josm.plugins.improveosm.gui.details.comment.DisplayEditDialogAction.<init>(DisplayEditDialogAction.java:51)
	at org.openstreetmap.josm.plugins.improveosm.gui.details.ButtonPanel.<init>(ButtonPanel.java:86)
	at org.openstreetmap.josm.plugins.improveosm.gui.details.ImproveOsmDetailsDialog.<init>(ImproveOsmDetailsDialog.java:95)
	at org.openstreetmap.josm.plugins.improveosm.ImproveOsmPlugin.initializeDetailsDialog(ImproveOsmPlugin.java:159)
	at org.openstreetmap.josm.plugins.improveosm.ImproveOsmPlugin.mapFrameInitialized(ImproveOsmPlugin.java:141)
	... 50 more
Caused by: java.lang.ClassNotFoundException: org.openstreetmap.josm.gui.util.GuiSizesHelper
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.openstreetmap.josm.plugins.PluginClassLoader.loadClass(PluginClassLoader.java:59)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 56 more

=== RUNNING THREADS ===
Thread: Map Status Collector (67) of main
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
org.openstreetmap.josm.gui.MapStatus$Collector.run(MapStatus.java:407)
java.lang.Thread.run(Unknown Source)

Thread: Signal Dispatcher (4) of system

Thread: AWT-Windows (18) of system
sun.awt.windows.WToolkit.eventLoop(Native Method)
sun.awt.windows.WToolkit.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: Finalizer (3) of system
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

Thread: TimerQueue (22) of system
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown Source)
java.util.concurrent.DelayQueue.take(Unknown Source)
javax.swing.TimerQueue.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: AWT-EventQueue-0 (20) of main
Stacktrace see above.

Thread: RemoteControl HTTP Server (54) of main
java.net.DualStackPlainSocketImpl.accept0(Native Method)
java.net.DualStackPlainSocketImpl.socketAccept(Unknown Source)
java.net.AbstractPlainSocketImpl.accept(Unknown Source)
java.net.PlainSocketImpl.accept(Unknown Source)
java.net.ServerSocket.implAccept(Unknown Source)
java.net.ServerSocket.accept(Unknown Source)
org.openstreetmap.josm.io.remotecontrol.RemoteControlHttpServer.run(RemoteControlHttpServer.java:104)

Thread: Thread-1 (12) of main
sun.nio.fs.WindowsNativeDispatcher.GetQueuedCompletionStatus0(Native Method)
sun.nio.fs.WindowsNativeDispatcher.GetQueuedCompletionStatus(Unknown Source)
sun.nio.fs.WindowsWatchService$Poller.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: Reference Handler (2) of system
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Unknown Source)
java.lang.ref.Reference.tryHandlePending(Unknown Source)
java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)

Thread: WeakCollectionCleaner (49) of main
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
org.geotools.util.WeakCollectionCleaner.run(WeakCollectionCleaner.java:77)

Thread: File Watcher (13) of main
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
java.util.concurrent.LinkedBlockingDeque.takeFirst(Unknown Source)
java.util.concurrent.LinkedBlockingDeque.take(Unknown Source)
sun.nio.fs.AbstractWatchService.take(Unknown Source)
org.openstreetmap.josm.io.FileWatcher.processEvents(FileWatcher.java:114)
org.openstreetmap.josm.io.FileWatcher$$Lambda$4/1558600329.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: message-notifier-0 (59) of main
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown Source)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source)
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: GT authority factory disposer (44) of main
java.lang.Object.wait(Native Method)
java.util.TimerThread.mainLoop(Unknown Source)
java.util.TimerThread.run(Unknown Source)

Thread: AWT-Shutdown (17) of system
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Unknown Source)
sun.awt.AWTAutoShutdown.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: Weak reference cleaner (29) of main
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
org.openstreetmap.josm.tools.ListenableWeakReference.clean(ListenableWeakReference.java:61)
org.openstreetmap.josm.tools.ListenableWeakReference$$Lambda$91/402009651.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: main-worker-0 (64) of main
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Unknown Source)
java.awt.EventQueue.invokeAndWait(Unknown Source)
java.awt.EventQueue.invokeAndWait(Unknown Source)
org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:100)
org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:143)
java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
java.util.concurrent.FutureTask.run(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: Attach Listener (5) of system

Thread: Timer-0 (56) of main
java.lang.Object.wait(Native Method)
java.util.TimerThread.mainLoop(Unknown Source)
java.util.TimerThread.run(Unknown Source)

Thread: JCS-ElementEventQueue-Thread-7 (43) of main
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: image-fetcher-0 (39) of main
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(Unknown Source)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: Java2D Disposer (15) of system
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
java.lang.ref.ReferenceQueue.remove(Unknown Source)
sun.java2d.Disposer.run(Unknown Source)
java.lang.Thread.run(Unknown Source)

Thread: Timer-1 (66) of main
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Unknown Source)
java.util.TimerThread.mainLoop(Unknown Source)
java.util.TimerThread.run(Unknown Source)

Thread: DestroyJavaVM (60) of main

Thread: RemoteControl HTTP Server (55) of main
java.net.DualStackPlainSocketImpl.accept0(Native Method)
java.net.DualStackPlainSocketImpl.socketAccept(Unknown Source)
java.net.AbstractPlainSocketImpl.accept(Unknown Source)
java.net.PlainSocketImpl.accept(Unknown Source)
java.net.ServerSocket.implAccept(Unknown Source)
java.net.ServerSocket.accept(Unknown Source)
org.openstreetmap.josm.io.remotecontrol.RemoteControlHttpServer.run(RemoteControlHttpServer.java:104)

[Don-vip]

Closed as duplicate of #15213.