我正在开发一个xtext域模型,首先一切都很好。但是有些日子我在eclipse中首次使用生成的编辑器打开我的dsl文件时总会出现以下错误:
Guice provision errors:
1) Error injecting method, java.lang.NullPointerException
at org.eclipse.xtext.ui.editor.formatting.PreferenceStoreIndentationInformation.setPreferenceStoreAccess(Unknown Source)
at org.eclipse.xtext.ui.editor.formatting.PreferenceStoreIndentationInformation.class(Unknown Source)
while locating org.eclipse.xtext.ui.editor.formatting.PreferenceStoreIndentationInformation
while locating org.eclipse.xtext.formatting.IIndentationInformation
for field at org.eclipse.xtext.ui.editor.autoedit.MultiLineTerminalsEditStrategy$Factory.indentationInformation(Unknown Source)
while locating org.eclipse.xtext.ui.editor.autoedit.MultiLineTerminalsEditStrategy$Factory
for field at org.eclipse.xtext.ui.editor.autoedit.DefaultAutoEditStrategyProvider.multiLineTerminals(Unknown Source)
while locating org.eclipse.xtext.ui.editor.autoedit.DefaultAutoEditStrategyProvider
while locating org.eclipse.xtext.ui.editor.autoedit.AbstractEditStrategyProvider
for field at org.eclipse.xtext.ui.editor.XtextSourceViewerConfiguration.editStrategyProvider(Unknown Source)
while locating org.eclipse.xtext.ui.editor.XtextSourceViewerConfiguration
for field at org.eclipse.xtext.ui.editor.XtextEditor.sourceViewerConfiguration(Unknown Source)
while locating org.eclipse.xtext.ui.editor.XtextEditor
1 error (occurred in org.xtext.example.mydsl.ui.MyDslExecutableExtensionFactory)
在我将片段LabelProviderFragment2
和OutlineTreeProviderFragment2
添加到mwe2文件后,我首先注意到了。
重新打开编辑器,然后我可以编辑该文件。唯一不起作用的是我想要添加的大纲中的自定义图标。
我自己找到了答案。问题与添加的片段无关,但是我还添加了输出配置。
在我的输出配置中,我没有为输出指定描述。在我设置了描述并重新安装插件后,错误消失了。访问我的插件的首选项页面时,我也遇到了错误,因为在那里使用了描述。