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我剛剛創建了一個使用tycho的eclipse插件。我可以運行mvn clean install，到目前爲止沒有錯誤。運行tycho eclipse插件作爲Eclipse應用程序
現在我想運行該插件作爲Eclipse應用程序（它基本上是一個生成器）。當我按run as Eclipse Application時，第二個eclipse實例顯示出來。當我有創建一個新項目，並添加我的建設者，日食引發我此異常：
org.eclipse.e4.core.di.InjectionException: org.eclipse.core.commands.ExecutionException: Failed to toggle nature
Caused by: org.eclipse.core.commands.ExecutionException: Failed to toggle nature
Caused by: org.eclipse.core.runtime.CoreException: Problems encountered while setting project description
在此方法中發生的錯誤：
private void toggleNature(IProject project) throws CoreException {
IProjectDescription description = project.getDescription();
String[] natures = description.getNatureIds();
for (int i = 0; i < natures.length; ++i) {
if (SidecarNature.NATURE_ID.equals(natures[i])) {
// Remove the nature
String[] newNatures = new String[natures.length - 1];
System.arraycopy(natures, 0, newNatures, 0, i);
System.arraycopy(natures, i + 1, newNatures, i, natures.length - i - 1);
description.setNatureIds(newNatures);
project.setDescription(description, null);
return;
}
}
// Add the nature
String[] newNatures = new String[natures.length + 1];
System.arraycopy(natures, 0, newNatures, 0, natures.length);
newNatures[natures.length] = SidecarNature.NATURE_ID;
description.setNatureIds(newNatures);
// ---------------------------------------
// The Error is thrown here
// ---------------------------------------
project.setDescription(description, null);
}
我不知道什麼是錯，因爲這是日食模板代碼。我沒有改變任何東西。它應該工作，當我不使用maven。
這是基本的pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>tycho_example</groupId>
<artifactId>com.codeandme.tycho.plugin</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>eclipse-plugin</packaging>
<properties>
<tycho.version>0.23.0</tycho.version>
</properties>
<repositories>
<!-- add Mars repository to resolve dependencies -->
<repository>
<id>Mars</id>
<layout>p2</layout>
<url>http://download.eclipse.org/releases/mars/</url>
</repository>
</repositories>
<build>
<plugins>
<plugin>
<!-- enable tycho build extension -->
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-maven-plugin</artifactId>
<version>${tycho.version}</version>
<extensions>true</extensions>
</plugin>
</plugins>
</build>
</project>
編輯 如這裏要求是完整的堆棧跟蹤：
org.eclipse.e4.core.di.InjectionException: org.eclipse.core.commands.ExecutionException: Failed to toggle nature
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:68)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:252)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:234)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:493)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:486)
at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:799)
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.handleWidgetSelection(HandledContributionItem.java:675)
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.access$7(HandledContributionItem.java:659)
at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem$4.handleEvent(HandledContributionItem.java:592)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1299)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3698)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
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:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
Caused by: org.eclipse.core.commands.ExecutionException: Failed to toggle nature
at de.ustutt.sidewise.eclipseintegration.builder.AddRemoveSidewiseNatureHandler.execute(AddRemoveSidewiseNatureHandler.java:37)
at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:295)
at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
... 41 more
Caused by: org.eclipse.core.runtime.CoreException: Problems encountered while setting project description.
at org.eclipse.core.internal.resources.Project.setDescription(Project.java:1256)
at org.eclipse.core.internal.resources.Project.setDescription(Project.java:1281)
at de.ustutt.sidewise.eclipseintegration.builder.AddRemoveSidewiseNatureHandler.toggleNature(AddRemoveSidewiseNatureHandler.java:78)
at de.ustutt.sidewise.eclipseintegration.builder.AddRemoveSidewiseNatureHandler.execute(AddRemoveSidewiseNatureHandler.java:34)
... 48 more
EDIT2 的IStatus：
Status WARNING: org.eclipse.core.resources code=568 Problems encountered while setting project description. null children=[[type: WARNING], [path: null], [message: Nature does not exist: eclipseintegration.builder.SidewiseNature.], [plugin: org.eclipse.core.resources], [exception: null]
]
向我們展示完整的堆棧跟蹤 –
@ greg-449感謝，編輯我的問題 – Robin
您需要查看'設置項目描述時遇到的問題'CoreException'中的'IStatus'，因爲這將包含更多關於究竟是什麼問題。 –