Throw Error: "hexadecimal value 0x00, is an invalid character."

[maartenba]

From @Cuiqs76 on October 28, 2015 13:25

VS2015 & Windows 10 environment Nuget the Prism.Unity throw Error "hexadecimal value 0x00, is an invalid character."

When nugeting, the computer power off. restart computer and reload the program. the package file show messy code. and delete the package file. try to re-nuget , the error throw.

Attempting to gather dependencies information for package 'Prism.Unity.6.1.1' with respect to project 'MonitorDemo', targeting '.NETFramework,Version=v4.6'
Attempting to resolve dependencies for package 'Prism.Unity.6.1.1' with DependencyBehavior 'Lowest'
Resolving actions to install package 'Prism.Unity.6.1.1'
Resolved actions to install package 'Prism.Unity.6.1.1'
Install failed. Rolling back...
Package 'Prism.Unity 6.1.1' does not exist in project 'MonitorDemo'
Package 'Prism.Unity 6.1.1' does not exist in folder 'E:\MonitorDemo\packages'
System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
at System.Xml.XmlTextReaderImpl.ThrowInvalidChar(Char[] data, Int32 length, Int32 invCharPos)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
at System.Xml.Linq.XDocument.Load(Stream stream, LoadOptions options)
at System.Xml.Linq.XDocument.Load(Stream stream)
at NuGet.Packaging.Core.NuspecCoreReaderBase..ctor(Stream stream)
at NuGet.Packaging.NuspecReader..ctor(Stream stream, IFrameworkNameProvider frameworkProvider)
at NuGet.Packaging.NuspecReader..ctor(Stream stream)
at NuGet.Packaging.PackageReaderBase.get_Nuspec()
at NuGet.Packaging.PackageReaderBase.get_NuspecCore()
at NuGet.Packaging.Core.PackageReaderCoreBase.GetIdentity()
at NuGet.PackageManagement.NuGetPackageManager.d__42.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at NuGet.PackageManagement.NuGetPackageManager.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.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.d__3.MoveNext()

Copied from original issue: NuGet/NuGetGallery#2751

[yishaigalatzer]

Duplicate of #1550

Looks like one of your app.config or web.config files is corrupt.

[mortezabarzkar]

Then you can run the following commands::

nuget.exe locals -clear global-packages
nuget.exe locals -clear packages-cache
nuget.exe locals -clear http-cache