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通過的NuGet下載System.Data.Sqlite我試圖下載包System.Data.Sqlite通過股票的NuGet在Visual Studio 2015年社區EF6支持。按「安裝」後，我得到依賴關係。然後，在確認之後，一段時間沒有任何事情發生，然後在Output窗口中，我得到「Object reference not set to object of instance」的錯誤。我將NuGet升級到3.2.x，但問題依然存在。我能做些什麼來解決它？不能在VS2015
編輯：從輸出控制檯日誌：
Attempting to gather dependencies information for package 'System.Data.SQLite.1.0.98.1' with respect to project 'WPTManager', targeting '.NETFramework,Version=v4.5.2'
Attempting to resolve dependencies for package 'System.Data.SQLite.1.0.98.1' with DependencyBehavior 'Lowest'
Resolving actions to install package 'System.Data.SQLite.1.0.98.1'
Resolved actions to install package 'System.Data.SQLite.1.0.98.1'
Install failed. Rolling back...
Package 'EntityFramework 6.0.0' does not exist in project 'WPTManager'
Package 'EntityFramework 6.0.0' does not exist in folder 'D:\Dokumenty\Dev\VS\Projekty\WPTManager\packages'
System.NullReferenceException: Object reference not set to an instance of an object.
at NuGet.Protocol.Core.v3.GlobalPackagesFolderUtility.<AddPackageAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at NuGet.Protocol.Core.v3.DownloadResourceV3.<GetDownloadResourceResultAsync>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NuGet.PackageManagement.PackageDownloader.<GetDownloadResourceResultAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at NuGet.PackageManagement.NuGetPackageManager.<ExecuteNuGetProjectActionsAsync>d__42.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at NuGet.PackageManagement.NuGetPackageManager.<ExecuteNuGetProjectActionsAsync>d__42.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NuGet.PackageManagement.UI.UIActionEngine.<ExecuteActionsAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at NuGet.PackageManagement.UI.UIActionEngine.<PerformActionAsync>d__3.MoveNext()
========== Finished ==========
究竟哪個包？ – ErikEJ
@ErikEJ System.Data.SQLite.1.0.98.1 – Spook