问题
I'm getting the following error during a loading of a Microsoft WORD VSTO Add-in that I created using VS2019 on Windows 10 Pro. The adding was loading fine before. Question: What could have been the cause of the error and how can the issue be resolved? Found some similar issues online (like this one) but still no luck.
Error:
Name:
From: file:///C:/DotNet2019/VSTO/MyWORDAddinProj/bin/Debug/MyWORDAddinProj.vsto
************** Exception Text **************
System.Deployment.Application.InvalidDeploymentException: Exception reading manifest from file:///C:/DotNet2019/VSTO/MyWORDAddinProj/bin/Debug/MyWORDAddinProj.dll.manifest: the manifest may not be valid or the file could not be opened. ---> System.Deployment.Application.InvalidDeploymentException: Parsing and DOM creation of the manifest resulted in error. Following parsing errors were noticed:
-HRESULT: 0x80070c81
Start line: 0
Start column: 0
Host file: ---> System.Runtime.InteropServices.COMException: Exception from HRESULT: 0x80070C81
at System.Deployment.Internal.Isolation.IsolationInterop.CreateCMSFromXml(Byte[] buffer, UInt32 bufferSize, IManifestParseErrorCallback Callback, Guid& riid)
at System.Deployment.Application.Manifest.AssemblyManifest.LoadCMSFromStream(Stream stream)
--- End of inner exception stack trace ---
at System.Deployment.Application.Manifest.AssemblyManifest.LoadCMSFromStream(Stream stream)
at System.Deployment.Application.Manifest.AssemblyManifest..ctor(FileStream fileStream)
at System.Deployment.Application.ManifestReader.FromDocument(String localPath, ManifestType manifestType, Uri sourceUri)
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.GetManifests(TimeSpan timeout)
at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.InstallAddIn()
Event Viewer shows more detailed info. Along with the above error, it shows the following:
************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4180.0 built by: NET48REL1LAST_B
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
Microsoft.VisualStudio.Tools.Office.Runtime
Assembly Version: 10.0.0.0
Win32 Version: 10.0.60828.0
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualStudio.Tools.Office.Runtime/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.Tools.Office.Runtime.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4180.0 built by: NET48REL1LAST_B
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4001.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Microsoft.VisualStudio.Tools.Applications.Hosting
Assembly Version: 10.0.0.0
Win32 Version: 10.0.60828.0
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualStudio.Tools.Applications.Hosting/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.Tools.Applications.Hosting.dll
----------------------------------------
Microsoft.VisualStudio.Tools.Applications.ServerDocument
Assembly Version: 10.0.0.0
Win32 Version: 10.0.60828.0
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualStudio.Tools.Applications.ServerDocument/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.Tools.Applications.ServerDocument.dll
----------------------------------------
Microsoft.VisualStudio.Tools.Applications.Runtime
Assembly Version: 10.0.0.0
Win32 Version: 10.0.60828.0
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualStudio.Tools.Applications.Runtime/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.Tools.Applications.Runtime.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.8.4150.0 built by: NET48REL1LAST_C
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Deployment
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Deployment/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Deployment.dll
----------------------------------------
System.Security
Assembly Version: 4.0.0.0
Win32 Version: 4.8.3752.0 built by: NET48REL1
CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Security/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Security.dll
----------------------------------------
回答1:
First of all, I'd suggest enabling logging and then take a look at logs generated, see Enhanced Logging in ClickOnce Deployment for more information.
There are too many cases for such exceptions... First of all, make sure that you did all the steps described in the Deploy an Office solution by using ClickOnce article. But the log can tell you more. Also, you may find the Troubleshoot Office solution deployment page helpful.
来源：https://stackoverflow.com/questions/61980065/ms-word-vsto-add-in-exception-reading-manifest-from-file