Moin,
mit welchem Betriebssystem bist Du unterwegs? Beim Mac wird die Werkzeugleiste bei maximiertem Fenster nicht dargestellt. Wenn man das Fenster etwas verkleinert sollte es wieder da sein. Ansonsten einfach mal den letzten Teil vom Logfile hier posten (steht im Userverzeichnis).

Hallo Ralf

Erstmal danke für deine Antwort

Hier Details für dich die das eventuell wieder anständig zum Laufen bringen

1. Win 7

2.

!ENTRY org.eclipse.e4.ui.workbench 4 0 2019-04-19 15:28:37.248
!MESSAGE Unable to create class 'com.sebulli.fakturama.parts.CoolbarViewPart' from bundle '1013'
!STACK 0
org.eclipse.e4.core.di.InjectionException: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:65)
	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:990)
	at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:124)
	at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:399)
	at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:332)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:186)
	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:108)
	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:74)
	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:51)
	at org.eclipse.e4.ui.workbench.renderers.swt.ToolControlRenderer.createWidget(ToolControlRenderer.java:126)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:992)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:661)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:767)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:738)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:732)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:716)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.processContents(SWTPartRenderer.java:69)
	at org.eclipse.e4.ui.workbench.renderers.swt.TrimBarRenderer.processContents(TrimBarRenderer.java:127)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:675)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$1.run(PartRenderingEngine.java:546)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:530)
	at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer.processContents(WBWRenderer.java:726)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:675)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:767)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:738)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:732)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:716)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1076)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:162)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
Caused by: java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String
	at org.eclipse.core.commands.ParameterizedCommand.generateCommand(ParameterizedCommand.java:316)
	at org.eclipse.e4.core.commands.internal.CommandServiceImpl.createCommand(CommandServiceImpl.java:41)
	at com.sebulli.fakturama.parts.CoolbarViewPart.createToolItem(CoolbarViewPart.java:335)
	at com.sebulli.fakturama.parts.CoolbarViewPart.createControls(CoolbarViewPart.java:131)
	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.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	... 46 more

Gruß derweil...

Update...

workbench.xmi gefunden und gelöscht

Werkzeugleiste nun wieder da

Fehlermeldung auch:

!SESSION 2019-04-19 15:45:05.414 -----------------------------------------------
eclipse.buildId=2.0.4.
java.version=1.8.0_172
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE
Command-line arguments: -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.e4.ui.workbench 4 0 2019-04-19 15:45:42.226
!MESSAGE Unable to generate parameterized command for org.eclipse.e4.ui.model.application.ui.menu.impl.HandledMenuItemImpl@1381415 (elementId: menu:main.menu.file.webshop.id, tags: null, contributorURI: platform:/plugin/com.sebulli.fakturama.rcp) (widget: null, renderer: org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer@161468c, toBeRendered: true, onTop: false, visible: true, containerData: null, accessibilityPhrase: null) (label: %command.webshop.name, iconURI: icon://COMMAND_SHOP, tooltip: %command.webshop.tooltip, enabled: false, selected: false, type: Push) (mnemonics: null) (wbCommand: null) with {org.fakturama.webshop.connector.action=import-orders, com.sebulli.fakturama.webshopimport.prepareGetProductsAndOrders=true}

!ENTRY com.sebulli.fakturama.common 4 0 2019-04-19 15:45:42.445
!MESSAGE c.s.f.p.CoolbarViewPart.createToolItem:348|No command found for com.sebulli.fakturama.command.webShopImport (Webshop). Please check your Applicationmodel!
!SESSION 2019-04-19 15:48:08.374 -----------------------------------------------
eclipse.buildId=2.0.4.
java.version=1.8.0_172
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE
Command-line arguments: -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.e4.ui.workbench 4 0 2019-04-19 15:48:47.536
!MESSAGE Unable to generate parameterized command for org.eclipse.e4.ui.model.application.ui.menu.impl.HandledMenuItemImpl@10c3951 (elementId: menu:main.menu.file.webshop.id, tags: null, contributorURI: platform:/plugin/com.sebulli.fakturama.rcp) (widget: null, renderer: org.eclipse.e4.ui.workbench.renderers.swt.MenuManagerRenderer@88f6fb, toBeRendered: true, onTop: false, visible: true, containerData: null, accessibilityPhrase: null) (label: %command.webshop.name, iconURI: icon://COMMAND_SHOP, tooltip: %command.webshop.tooltip, enabled: false, selected: false, type: Push) (mnemonics: null) (wbCommand: null) with {org.fakturama.webshop.connector.action=import-orders, com.sebulli.fakturama.webshopimport.prepareGetProductsAndOrders=true}

!ENTRY com.sebulli.fakturama.common 4 0 2019-04-19 15:48:47.730
!MESSAGE c.s.f.p.CoolbarViewPart.createToolItem:348|No command found for com.sebulli.fakturama.command.webShopImport (Webshop). Please check your Applicationmodel!

Gruß ...

Hast Du das gelöscht nachdem Fakturama beendet wurde? Normalerweise tritt der Fehler nach dem Löschen der Datei nicht mehr auf.

Wenn du die workbench.xmi meinst ja, sogar danach noch mehrmals gestartet um zu testen.
Die Datei wird ja neu angelegt oder?