Visual Studio 2022 MVC对象引用错误，@Script.RRender(~/bundles/boots

Question

我是一名初级大学生，正在MVC中进行一个小组项目。在我们最近的代码更新之前，一切都相对顺利。

在浏览器中测试应用程序(本地(时，应用程序会抛出以下错误：

对象参考错误

堆栈跟踪：

[NullReferenceException: Object reference not set to an instance of an object.]
Microsoft.Ajax.Utilities.JSParser.ParseObjectLiteralProperty(Boolean isBindingPattern) +944
Microsoft.Ajax.Utilities.JSParser.ParseObjectLiteral(Boolean isBindingPattern) +164
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +2591
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseExpressionList(JSToken terminator) +408
Microsoft.Ajax.Utilities.JSParser.ParseMemberExpression(AstNode expression, List`1 newContexts) +106
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +3074
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseExpressionStatement(Boolean fSourceElement) +41
Microsoft.Ajax.Utilities.JSParser.ParseStatement(Boolean fSourceElement, Boolean skipImportantComment) +1474
Microsoft.Ajax.Utilities.JSParser.ParseBlock() +147
Microsoft.Ajax.Utilities.JSParser.ParseArrowFunction(AstNode parameters) +200
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +3057
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseExpressionList(JSToken terminator) +408
Microsoft.Ajax.Utilities.JSParser.ParseMemberExpression(AstNode expression, List`1 newContexts) +106
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +3074
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseExpressionStatement(Boolean fSourceElement) +41
Microsoft.Ajax.Utilities.JSParser.ParseStatement(Boolean fSourceElement, Boolean skipImportantComment) +1474
Microsoft.Ajax.Utilities.JSParser.ParseBlock() +147
Microsoft.Ajax.Utilities.JSParser.ParseIfStatement() +528
Microsoft.Ajax.Utilities.JSParser.ParseFunctionBody(Block body) +43
Microsoft.Ajax.Utilities.JSParser.ParseFunction(FunctionType functionType, Context fncCtx) +1083
Microsoft.Ajax.Utilities.JSParser.ParseObjectLiteralProperty(Boolean isBindingPattern) +1168
Microsoft.Ajax.Utilities.JSParser.ParseObjectLiteral(Boolean isBindingPattern) +164
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +2591
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseVarDecl(JSToken inToken) +407
Microsoft.Ajax.Utilities.JSParser.ParseVariableStatement() +586
Microsoft.Ajax.Utilities.JSParser.ParseFunctionBody(Block body) +43
Microsoft.Ajax.Utilities.JSParser.ParseFunction(FunctionType functionType, Context fncCtx) +1083
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +2626
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +2329
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseExpressionList(JSToken terminator) +408
Microsoft.Ajax.Utilities.JSParser.ParseMemberExpression(AstNode expression, List`1 newContexts) +106
Microsoft.Ajax.Utilities.JSParser.ParseLeftHandSideExpression(Boolean isMinus) +3074
Microsoft.Ajax.Utilities.JSParser.ParseUnaryExpression(Boolean& isLeftHandSideExpr, Boolean isMinus) +1090
Microsoft.Ajax.Utilities.JSParser.ParseExpressionStatement(Boolean fSourceElement) +41
Microsoft.Ajax.Utilities.JSParser.ParseStatement(Boolean fSourceElement, Boolean skipImportantComment) +1474
Microsoft.Ajax.Utilities.JSParser.ParseStatements(Block block) +76
Microsoft.Ajax.Utilities.JSParser.InternalParse() +848
Microsoft.Ajax.Utilities.Minifier.MinifyJavaScript(String source, CodeSettings codeSettings) +805
System.Web.Optimization.JsMinify.Process(BundleContext context, BundleResponse response) +115
System.Web.Optimization.Bundle.ApplyTransforms(BundleContext context, String bundleContent, IEnumerable`1 bundleFiles) +325
System.Web.Optimization.Bundle.GetBundleResponse(BundleContext context) +59
System.Web.Optimization.BundleResolver.GetBundleContents(String virtualPath) +213
System.Web.Optimization.AssetManager.DeterminePathsToRender(IEnumerable`1 assets) +421
System.Web.Optimization.AssetManager.RenderExplicit(String tagFormat, String[] paths) +34
ASP._Page_Views_Shared__Layout_cshtml.Execute() in C:Userstyler_sfm3foxDesktopCapstoneInTurnInTurnViewsShared_Layout.cshtml:46
System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +252
System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +148
System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +122
System.Web.WebPages.<>c__DisplayClass40_0.<RenderPageCore>b__0(TextWriter writer) +309
System.Web.WebPages.WebPageBase.Write(HelperResult result) +108
System.Web.WebPages.WebPageBase.RenderSurrounding(String partialViewName, Action`1 body) +89
System.Web.WebPages.WebPageBase.PopContext() +310
System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +378
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +91
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +795
System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +81
System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__1(IAsyncResult asyncResult) +188
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +39
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +43
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +431
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +75
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +158

我认为这可能是BundleConfig.cs文件或Bootstrap.js文件的问题。我甚至不完全确定在哪里或如何寻找根本原因。

我在这个网站上查看了类似的问题，一个常见的解决方案是更改

bundles.Add(new ScriptBundle("~/bundles/bootstrap").Include(
"~/Scripts/bootstrap.js"));

至

bundles.Add(new Bundle("~/bundles/bootstrap").Include(
"~/Scripts/bootstrap.js"));

这阻止了异常的发生，但引导程序元素已经不见了。

之前

之后

我的头一直撞在墙上，试图弄清楚发生了什么。

Answer 1

所以团队中一定有人更新了Bootstrap和jQuery。我们的项目模板不喜欢这样。我继续降级到ASP.Net Web应用程序(.Net Framework(模板附带的默认Bootstrap和jQuery版本，并修复了这个问题。

尽管我很好奇如何在不降级的情况下解决这个问题。

不过，很高兴地说，该项目已经启动并运行。

Answer 2

这个问题只发生在VS 2022中，但VS 2019运行时没有问题。