A null was returned after calling the 'GetService' method on a ...
[已解决] A null was returned after calling the 'GetService' method on a ...
当前页面：http://www.senparc.com/SZD-264
{ 收藏当前页面 }
100
[数据库 > SQLite]
使用SQLite，出现如下错误：
A null was returned after calling the 'GetService' method on a store provider instance of type 'System.Data.SQLite.SQLiteFactory'. The store provider might not be functioning correctly.
[ProviderIncompatibleException: A null was returned after calling the 'GetService' method on a store provider instance of type 'System.Data.SQLite.SQLiteFactory'. The store provider might not be functioning correctly.]
System.Data.Common.DbProviderServices.GetProviderServices(DbProviderFactory factory) +3261380
System.Data.Metadata.Edm.Loader.InitializeProviderManifest(Action`3 addError) +248
System.Data.Metadata.Edm.Loader.OnProviderManifestTokenNotification(String token, Action`3 addError) +32
System.Data.EntityModel.SchemaObjectModel.Schema.HandleProviderManifestTokenAttribute(XmlReader reader) +96
System.Data.EntityModel.SchemaObjectModel.Schema.HandleAttribute(XmlReader reader) +177
System.Data.EntityModel.SchemaObjectModel.SchemaElement.ParseAttribute(XmlReader reader) +80
System.Data.EntityModel.SchemaObjectModel.SchemaElement.Parse(XmlReader reader) +67
System.Data.EntityModel.SchemaObjectModel.Schema.HandleTopLevelSchemaElement(XmlReader reader) +30
System.Data.EntityModel.SchemaObjectModel.Schema.InternalParse(XmlReader sourceReader, String sourceLocation) +509
System.Data.EntityModel.SchemaObjectModel.Schema.Parse(XmlReader sourceReader, String sourceLocation) +65
System.Data.EntityModel.SchemaObjectModel.SchemaManager.ParseAndValidate(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths, SchemaDataModelOption dataModel, AttributeValueNotification providerNotification, AttributeValueNotification providerManifestTokenNotification, ProviderManifestNeeded providerManifestNeeded, IList`1& schemaCollection) +400
System.Data.Metadata.Edm.Loader.LoadItems(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths) +120
System.Data.Metadata.Edm.StoreItemCollection.Init(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths, Boolean throwOnError, DbProviderManifest& providerManifest, DbProviderFactory& providerFactory, Memoizer`2& cachedCTypeFunction) +142
System.Data.Metadata.Edm.StoreItemCollection..ctor(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths) +170
System.Data.Metadata.Edm.StoreMetadataEntry.LoadStoreCollection(EdmItemCollection edmItemCollection, MetadataArtifactLoader loader) +90
System.Data.Metadata.Edm.StoreItemCollectionLoader.LoadItemCollection(StoreMetadataEntry entry) +16
System.Data.Metadata.Edm.MetadataCache.LoadItemCollection(IItemCollectionLoader`1 itemCollectionLoader, T entry) +123
System.Data.Metadata.Edm.MetadataCache.GetOrCreateStoreAndMappingItemCollections(String cacheKey, MetadataArtifactLoader loader, EdmItemCollection edmItemCollection, Object& entryToken) +172
System.Data.EntityClient.EntityConnection.LoadStoreItemCollections(MetadataWorkspace workspace, DbConnection storeConnection, DbProviderFactory factory, DbConnectionOptions connectionOptions, EdmItemCollection edmItemCollection, MetadataArtifactLoader artifactLoader) +137
System.Data.EntityClient.EntityConnection.GetMetadataWorkspace(Boolean initializeAllCollections) +298
System.Data.EntityClient.EntityConnection.InitializeMetadata(DbConnection newConnection, DbConnection originalConnection, Boolean closeOriginalConnectionOnFailure) +83
System.Data.EntityClient.EntityConnection.Open() +144
System.Data.Objects.ObjectContext.EnsureConnection() +81
System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption) +46
System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator() +44
System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +203
System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__1(IEnumerable`1 sequence) +40
System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle(IEnumerable`1 query, Expression queryRoot) +59
System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute(Expression expression) +109
System.Linq.Queryable.FirstOrDefault(IQueryable`1 source, Expression`1 predicate) +301
请问是什么问题？如何解决？？
A null was returned after calling the 'GetService' method on a store provider instance of type 'System.Data.SQLite.SQLiteFactory'. The store provider might not be functioning correctly.
[ProviderIncompatibleException: A null was returned after calling the 'GetService' method on a store provider instance of type 'System.Data.SQLite.SQLiteFactory'. The store provider might not be functioning correctly.]
System.Data.Common.DbProviderServices.GetProviderServices(DbProviderFactory factory) +3261380
System.Data.Metadata.Edm.Loader.InitializeProviderManifest(Action`3 addError) +248
System.Data.Metadata.Edm.Loader.OnProviderManifestTokenNotification(String token, Action`3 addError) +32
System.Data.EntityModel.SchemaObjectModel.Schema.HandleProviderManifestTokenAttribute(XmlReader reader) +96
System.Data.EntityModel.SchemaObjectModel.Schema.HandleAttribute(XmlReader reader) +177
System.Data.EntityModel.SchemaObjectModel.SchemaElement.ParseAttribute(XmlReader reader) +80
System.Data.EntityModel.SchemaObjectModel.SchemaElement.Parse(XmlReader reader) +67
System.Data.EntityModel.SchemaObjectModel.Schema.HandleTopLevelSchemaElement(XmlReader reader) +30
System.Data.EntityModel.SchemaObjectModel.Schema.InternalParse(XmlReader sourceReader, String sourceLocation) +509
System.Data.EntityModel.SchemaObjectModel.Schema.Parse(XmlReader sourceReader, String sourceLocation) +65
System.Data.EntityModel.SchemaObjectModel.SchemaManager.ParseAndValidate(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths, SchemaDataModelOption dataModel, AttributeValueNotification providerNotification, AttributeValueNotification providerManifestTokenNotification, ProviderManifestNeeded providerManifestNeeded, IList`1& schemaCollection) +400
System.Data.Metadata.Edm.Loader.LoadItems(IEnumerable`1 xmlReaders, IEnumerable`1 sourceFilePaths) +120
System.Data.Metadata.Edm.StoreItemCollection.Init(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths, Boolean throwOnError, DbProviderManifest& providerManifest, DbProviderFactory& providerFactory, Memoizer`2& cachedCTypeFunction) +142
System.Data.Metadata.Edm.StoreItemCollection..ctor(IEnumerable`1 xmlReaders, IEnumerable`1 filePaths) +170
System.Data.Metadata.Edm.StoreMetadataEntry.LoadStoreCollection(EdmItemCollection edmItemCollection, MetadataArtifactLoader loader) +90
System.Data.Metadata.Edm.StoreItemCollectionLoader.LoadItemCollection(StoreMetadataEntry entry) +16
System.Data.Metadata.Edm.MetadataCache.LoadItemCollection(IItemCollectionLoader`1 itemCollectionLoader, T entry) +123
System.Data.Metadata.Edm.MetadataCache.GetOrCreateStoreAndMappingItemCollections(String cacheKey, MetadataArtifactLoader loader, EdmItemCollection edmItemCollection, Object& entryToken) +172
System.Data.EntityClient.EntityConnection.LoadStoreItemCollections(MetadataWorkspace workspace, DbConnection storeConnection, DbProviderFactory factory, DbConnectionOptions connectionOptions, EdmItemCollection edmItemCollection, MetadataArtifactLoader artifactLoader) +137
System.Data.EntityClient.EntityConnection.GetMetadataWorkspace(Boolean initializeAllCollections) +298
System.Data.EntityClient.EntityConnection.InitializeMetadata(DbConnection newConnection, DbConnection originalConnection, Boolean closeOriginalConnectionOnFailure) +83
System.Data.EntityClient.EntityConnection.Open() +144
System.Data.Objects.ObjectContext.EnsureConnection() +81
System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption) +46
System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator() +44
System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +203
System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__1(IEnumerable`1 sequence) +40
System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle(IEnumerable`1 query, Expression queryRoot) +59
System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute(Expression expression) +109
System.Linq.Queryable.FirstOrDefault(IQueryable`1 source, Expression`1 predicate) +301
请问是什么问题？如何解决？？
最佳答案
确认一下是不是依赖了System.Data.SQLite.Linq这个程序集，如果是的话，上传System.Data.SQLite.Linq.dll就行了。
回答时间：2011/8/27 16:07:16
| 回答者：zsu
其他参考答案（0）
提交失败！请检查错误！错误信息：
以下信息或许对您有用：
- [已解决] 10 SQLite数据库大小会自动伸缩吗？比如我有1万条数据，删除后数据库会自动变小吗... 2010/9/9 22:58:24
- [已解决] 20 SQLite3.0 开发接口文档或说明？ 2010/6/24 14:16:17
- [已解决] 5 SQLite可以应用在手机或者桌面软件上吗？ 2010/6/19 22:15:31
- [已解决] 10 有Linq to SQLite 之类的ORM框架吗？ 2010/6/18 22:35:09
