第一次使用db4o遇到的错误!

08-06-18 zhangjie
    

我使用objectmanager打开.yap报了以下的错误:

db4o stacktrace>

java.lang.RuntimeException: File format incompatible.

at com.db4o.inside.Exceptions4.throwRuntimeException(Unknown Source)

at com.db4o.inside.Exceptions4.throwRuntimeException(Unknown Source)

at com.db4o.YapFile.readThis(Unknown Source)

at com.db4o.YapRandomAccessFile.open(Unknown Source)

at com.db4o.YapRandomAccessFile.<init>(Unknown Source)

at com.db4o.Sessions.open(Unknown Source)

at com.db4o.Db4o.openFile(Unknown Source)

at com.db4o.browser.model.Db4oFileConnectionSpec.connectInternal(Unknown

Source)

at com.db4o.browser.model.Db4oConnectionSpec.connect(Unknown Source)

at com.db4o.browser.model.Db4oDatabase.reopen(Unknown Source)

at com.db4o.browser.model.Db4oDatabase.open(Unknown Source)

at com.db4o.browser.model.BrowserCore.getDatabase(Unknown Source)

at com.db4o.browser.model.BrowserCore.iterator(Unknown Source)

at com.db4o.browser.gui.controllers.BrowserTabController.internalSetInpu

t(Unknown Source)

at com.db4o.browser.gui.controllers.BrowserTabController.open(Unknown So

urce)

at com.db4o.browser.gui.controllers.BrowserTabController.open(Unknown So

urce)

at com.db4o.browser.gui.standalone.StandaloneBrowser$3.widgetSelected(Un

known Source)

at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:

89)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:844)

at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3070)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2703)

at com.db4o.browser.gui.standalone.SWTProgram.runWithLog(Unknown Source)

at com.db4o.browser.gui.standalone.StandaloneBrowser.main(Unknown Source

)

</db4o stacktrace>

Uncaught exception in SWT event loop

java.lang.IllegalArgumentException: Could not open: F:\work_union\DB4oTest\auto.

yap

at com.db4o.browser.model.Db4oDatabase.reopen(Unknown Source)

at com.db4o.browser.model.Db4oDatabase.open(Unknown Source)

at com.db4o.browser.model.BrowserCore.getDatabase(Unknown Source)

at com.db4o.browser.model.BrowserCore.iterator(Unknown Source)

at com.db4o.browser.gui.controllers.BrowserTabController.internalSetInpu

t(Unknown Source)

at com.db4o.browser.gui.controllers.BrowserTabController.open(Unknown So

urce)

at com.db4o.browser.gui.controllers.BrowserTabController.open(Unknown So

urce)

at com.db4o.browser.gui.standalone.StandaloneBrowser$3.widgetSelected(Un

known Source)

at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:

89)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:844)

at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3070)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2703)

at com.db4o.browser.gui.standalone.SWTProgram.runWithLog(Unknown Source)

at com.db4o.browser.gui.standalone.StandaloneBrowser.main(Unknown Source

)

是什么原因啊?

    

banq
2008-06-18 22:04

File format incompatible文件格式不兼容

zhangjie
2008-06-19 09:24

我是db4o的对象创建的数据库 怎么会这样啊 那这又是为什么呢?