在Visual Studio 2015社区的Aurelia捆绑
我在package.json设置了一个postinstall规则，如下所示：
"postinstall": "aurelia bundle --force"
如果我从项目文件夹中的cmd运行npm install ，则不显示任何错误，但在Visual Studio 2015社区中加载项目时，它会在“输出”窗口中显示以下错误（但会输出捆绑文件）：
---> (Inner Exception #0) Microsoft.NodejsTools.Npm.PackageJsonException: Error reading package.json at '...\node_modules\aurelia-cli\node_modules\npm\node_modules\graceful-fs\package.json': Error reading package.json. The file may be parseable JSON but may contain objects with duplicate properties. The following error occurred: Can not add Newtonsoft.Json.Linq.JValue to Newtonsoft.Json.Linq.JObject. ---> Microsoft.NodejsTools.Npm.PackageJsonException: Error reading package.json. The file may be parseable JSON but may contain objects with duplicate properties. The following error occurred: Can not add Newtonsoft.Json.Linq.JValue to Newtonsoft.Json.Linq.JObject. ---> System.ArgumentException: Can not add Newtonsoft.Json.Linq.JValue to Newtonsoft.Json.Linq.JObject. at Newtonsoft.Json.Linq.JObject.ValidateToken(JToken o, JToken existing) at Newtonsoft.Json.Linq.JContainer.InsertItem(Int32 index, JToken item, Boolean skipParentCheck) at Newtonsoft.Json.Linq.JObject.InsertItem(Int32 index, JToken item, Boolean skipParentCheck) at Newtonsoft.Json.Linq.JContainer.AddInternal(Int32 index, Object content, Boolean skipParentCheck) at Newtonsoft.Json.Linq.JContainer.Add(Object content) at Newtonsoft.Json.Linq.JTokenWriter.AddValue(JValue value, JsonToken token) at Newtonsoft.Json.Linq.JTokenWriter.WriteNull() at Newtonsoft.Json.JsonWriter.AutoCompleteClose(JsonContainerType type) at Newtonsoft.Json.JsonWriter.WriteEndObject() at Newtonsoft.Json.JsonWriter.WriteEnd(JsonContainerType type) at Newtonsoft.Json.JsonWriter.WriteEnd() at Newtonsoft.Json.JsonWriter.AutoCompleteAll() at Newtonsoft.Json.Linq.JTokenWriter.Close() at Newtonsoft.Json.JsonWriter.System.IDisposable.Dispose() at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateJObject(JsonReader reader) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue) at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent) at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType) at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings) at Microsoft.NodejsTools.Npm.ReaderPackageJsonSource..ctor(TextReader reader) --- End of inner exception stack trace --- at Microsoft.NodejsTools.Npm.ReaderPackageJsonSource..ctor(TextReader reader) at Microsoft.NodejsTools.Npm.FilePackageJsonSource..ctor(String fullPathToFile) --- End of inner exception stack trace --- at Microsoft.NodejsTools.Npm.FilePackageJsonSource.WrapExceptionAndRethrow(String fullPathToFile, Exception ex) at Microsoft.NodejsTools.Npm.FilePackageJsonSource..ctor(String fullPathToFile) at Microsoft.NodejsTools.Npm.DirectoryPackageJsonSource..ctor(String fullDirectoryPath) at Microsoft.NodejsTools.Npm.SPI.RootPackage..ctor(String fullPathToRootDirectory, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.NodeModules..ctor(IRootPackage parent, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.RootPackage..ctor(String fullPathToRootDirectory, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.NodeModules..ctor(IRootPackage parent, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.RootPackage..ctor(String fullPathToRootDirectory, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.NodeModules..ctor(IRootPackage parent, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.RootPackage..ctor(String fullPathToRootDirectory, Boolean showMissingDevOptionalSubPackages) at Microsoft.NodejsTools.Npm.SPI.NpmController.<RefreshAsync>d__1.MoveNext()<---
那么从visual studio自动运行npm install是否会影响到脚本的实际绑定，因为在自动运行时会跳过一些模块？
Visual Studio 2015使用非常旧版本的Node和npm。 我遇到了与Apache Cordova应用程序工具类似的问题。
你可以通过修改C：\ Program Files（x86）\ Microsoft Visual Studio 14.0 \ Common7 \ IDE \ Extensions \ Microsoft \ Web Tools \ External下的node.exe文件来使用和cmd相同的Node和npm
寻找这篇文章http://jameschambers.com/2015/09/upgrading-npm-in-visual-studio-2015/
另外，它看起来像VS不适用于最新的5.0.0节点。 用4.2.2代替解决。