Orchardcms 布局不会显示所有元素

有时会发生一些事情，orchard layouts模块开始不正确的工作：

编辑内容项时，布局部件不显示任何布局元素和画布区域

查看内容项时，布局部件不显示某些布局元素，例如投影元素

在这种情况下，我启用和禁用输出缓存模块，该模块将重新开始正常工作

我也向codeplex发布了这条消息，这是一个严重错误，妨碍了生产现场的正常工作。也许你知道我该怎么做

日志中的一个错误

2015-03-31 09:08:38,594 [93] Orchard.ContentManagement.Drivers.Coordinators.ContentPartDriverCoordinator - Default - NullReferenceException thrown from IContentPartDriver by Orchard.Layouts.Drivers.LayoutPartDriver
System.NullReferenceException: Object reference not set to an instance of an object.
   в Orchard.Layouts.Services.ElementFactory.Activate(ElementDescriptor descriptor, Action`1 initialize)
   в Orchard.Layouts.Services.ElementManager.ActivateElement(ElementDescriptor descriptor, Action`1 initialize)
   в Orchard.Layouts.Services.ContentModelMap.ToElement(IElementManager elementManager, DescribeElementsContext describeContext, JToken node)
   в Orchard.Layouts.Services.LayoutModelMapper.LoadElement(JToken node, Container parent, Int32 index, DescribeElementsContext describeContext)
   в Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode(JToken node, Container parent, Int32 index, DescribeElementsContext describeContext)
   в Orchard.Layouts.Services.LayoutModelMapper.<>c__DisplayClass10.<ParseEditorNode>b__d(JToken x, Int32 i)
   в System.Linq.Enumerable.<SelectIterator>d__7`2.MoveNext()
   в System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   в System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   в System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   в Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode(JToken node, Container parent, Int32 index, DescribeElementsContext describeContext)
   в Orchard.Layouts.Services.LayoutModelMapper.<>c__DisplayClass10.<ParseEditorNode>b__d(JToken x, Int32 i)
   в System.Linq.Enumerable.<SelectIterator>d__7`2.MoveNext()
   в System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   в System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   в System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   в Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode(JToken node, Container parent, Int32 index, DescribeElementsContext describeContext)
   в Orchard.Layouts.Services.LayoutModelMapper.<>c__DisplayClass10.<ParseEditorNode>b__d(JToken x, Int32 i)
   в System.Linq.Enumerable.<SelectIterator>d__7`2.MoveNext()
   в System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   в System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   в System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   в Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode(JToken node, Container parent, Int32 index, DescribeElementsContext describeContext)
   в Orchard.Layouts.Services.LayoutModelMapper.<>c__DisplayClass10.<ParseEditorNode>b__d(JToken x, Int32 i)
   в System.Linq.Enumerable.<SelectIterator>d__7`2.MoveNext()
   в System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   в System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   в System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   в Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode(JToken node, Container parent, Int32 index, DescribeElementsContext describeContext)
   в Orchard.Layouts.Services.LayoutModelMapper.<ToLayoutModel>d__6.MoveNext()
   в System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   в System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   в Orchard.Layouts.Drivers.LayoutPartDriver.<>c__DisplayClass12.<Editor>b__11()
   в Orchard.ContentManagement.Drivers.ContentPartDriver`1.<>c__DisplayClass15.<ContentShape>b__14(BuildShapeContext ctx) в d:\sites\orchard sites\rpa-mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentPartDriver.cs:line 196
   в Orchard.ContentManagement.Drivers.ContentPartDriver`1.<>c__DisplayClass1b.<ContentShapeImplementation>b__1a(BuildShapeContext ctx) в d:\sites\orchard sites\rpa-mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentPartDriver.cs:line 205
   в Orchard.ContentManagement.Drivers.ContentShapeResult.ApplyImplementation(BuildShapeContext context, String displayType) в d:\sites\orchard sites\rpa-mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentShapeResult.cs:line  45
   в Orchard.ContentManagement.Drivers.ContentShapeResult.Apply(BuildEditorContext context) в d:\sites\orchard sites\rpa-mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentShapeResult.cs: line 25
   в Orchard.ContentManagement.Drivers.Coordinators.ContentPartDriverCoordinator.<>c__DisplayClass10.<UpdateEditor>b__f(IContentPartDriver driver) в d:\sites\orchard sites\rpa-mu.ru-2-new\src\Orchard\ContentManagement\Drivers\Coordinators\ContentPartDriverCoordinator.cs:line 65
   в Orchard.InvokeExtensions.Invoke[TEvents](IEnumerable`1 events, Action`1 dispatch, ILogger logger) в d:\sites\orchard sites\rpa-mu.ru-2-new\src\Orchard\InvokeExtensions.cs:line 17

2015-03-31 09:08:38594[93]Orchard.ContentManagement.Drivers.Coordinators.ContentPartDriverCoordinator-默认-Orchard.Layouts.Drivers.LayoutPartDriver从IContentPartDriver引发的NullReferenceException
System.NullReferenceException:对象引用未设置为对象的实例。
of Orchard.Layouts.Services.ElementFactory.Activate（ElementDescriptor描述符，操作'1初始化）
of Orchard.Layouts.Services.ElementManager.ActivateElement（ElementDescriptor描述符，操作'1初始化）
of Orchard.Layouts.Services.ContentModelMap.ToElement（IElementManager elementManager，DescribeElementsContext DescribeeContext，JToken节点）
of Orchard.Layouts.Services.LayoutModelMapper.LoadElement（JToken节点、容器父级、Int32索引、DescribeElementsContext describeContext）
of Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode（JToken节点、容器父节点、Int32索引、DescribeElementsContext describeContext）
Ochard.Layouts.Services.LayoutModelMapper.c_uudisplayClass10.b_ud（JToken x，Int32 i）
of System.Linq.Enumerable.d_u7`2.MoveNext（）
of System.Linq.Enumerable.WhereEnumerableInterator`1.MoveNext（）
of System.Collections.Generic.List`1..ctor（IEnumerable`1 collection）
of System.Linq.Enumerable.ToList[TSource]（IEnumerable`1源）
of Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode（JToken节点、容器父节点、Int32索引、DescribeElementsContext describeContext）
Ochard.Layouts.Services.LayoutModelMapper.c_uudisplayClass10.b_ud（JToken x，Int32 i）
of System.Linq.Enumerable.d_u7`2.MoveNext（）
of System.Linq.Enumerable.WhereEnumerableInterator`1.MoveNext（）
of System.Collections.Generic.List`1..ctor（IEnumerable`1 collection）
of System.Linq.Enumerable.ToList[TSource]（IEnumerable`1源）
of Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode（JToken节点、容器父节点、Int32索引、DescribeElementsContext describeContext）
Ochard.Layouts.Services.LayoutModelMapper.c_uudisplayClass10.b_ud（JToken x，Int32 i）
of System.Linq.Enumerable.d_u7`2.MoveNext（）
of System.Linq.Enumerable.WhereEnumerableInterator`1.MoveNext（）
of System.Collections.Generic.List`1..ctor（IEnumerable`1 collection）
of System.Linq.Enumerable.ToList[TSource]（IEnumerable`1源）
of Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode（JToken节点、容器父节点、Int32索引、DescribeElementsContext describeContext）
Ochard.Layouts.Services.LayoutModelMapper.c_uudisplayClass10.b_ud（JToken x，Int32 i）
of System.Linq.Enumerable.d_u7`2.MoveNext（）
of System.Linq.Enumerable.WhereEnumerableInterator`1.MoveNext（）
of System.Collections.Generic.List`1..ctor（IEnumerable`1 collection）
of System.Linq.Enumerable.ToList[TSource]（IEnumerable`1源）
of Orchard.Layouts.Services.LayoutModelMapper.ParseEditorNode（JToken节点、容器父节点、Int32索引、DescribeElementsContext describeContext）
of Orchard.Layouts.Services.LayoutModelMapper.d_u6.MoveNext（）
系统Linq缓冲区'1..ctor（IEnumerable'1源）
of System.Linq.Enumerable.ToArray[TSource]（IEnumerable`1源）
vf Orchard.Layouts.Drivers.LayoutPartDriver.c__显示类12.b__11（）
of Orchard.ContentManagement.Drivers.ContentPartDriver`1.c_uuudisplayClass15.b_uuu14（BuildShapeContext ctx）of d:\sites\Orchard sites\rpa mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentPartDriver.cs:第196行
of Orchard.ContentManagement.Drivers.ContentPartDriver`1.c_uuudisplayClass1B.b_uuu1A（BuildShapeContext ctx）of d:\sites\Orchard sites\rpa mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentPartDriver.cs:第205行
of Orchard.ContentManagement.Drivers.ContentShapeResult.ApplyImplementation（BuildShapeContext上下文，字符串显示类型）of d:\sites\Orchard sites\rpa mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentShapeResult.cs:第45行
of Orchard.ContentManagement.Drivers.ContentShapeResult.Apply（BuildEditorContext上下文）of d:\sites\Orchard sites\rpa mu.ru-2-new\src\Orchard\ContentManagement\Drivers\ContentShapeResult.cs:第25行
of Orchard.ContentManagement.Drivers.Coordinator.ContentPartDriverCoordinator.c_uuDisplayClass10.b_uuf（IContentPartDriver驱动程序）of of of of d:\sites\Orchard sites\rpa mu.ru-2-new\src\Orchard\ContentManagement\Drivers\Coordinators\ContentPartDriverCoordinator.cs:第65行
of Orchard.InvokeExtensions.Invoke[TEvents]（IEnumerable`1事件，动作`1调度，ILogger记录器）of d:\sites\Orchard sites\rpa mu.ru-2-new\src\Orchard\InvokeExtensions.cs:第17行

您能提交一个bug吗？问题是我造成的。我在今天的问题上添加了一条新的评论