“CascadePackage”包未正确加载

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我刚刚对 VS2019(16.9.0) 进行了更新，现在我收到了这条消息。（实际上在两台机器上）。重新启动不能解决问题。

什么是 CascadePackage？我No可以对着对话框说就可以了吗？

另外......它提到要检查的文件......不再存在，也不存在它所在的目录。

我确实在最新的 ActivityLog.xml 中找到了这一行

  <entry>
    <record>894</record>
    <time>2021/03/05 13:52:21.259</time>
    <type>Error</type>
    <source>VisualStudio</source>
    <description>SetSite failed for package [CascadePackage]Source: &apos;System.ComponentModel.Composition&apos; Description: The composition produced multiple composition errors, with 3 root causes. The root causes are provided below. Review the CompositionException.Errors property for more detailed information.

1) No exports were found that match the constraint: 
	ContractName	Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler
	RequiredTypeIdentity	Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler

Resulting in: Cannot set import &apos;Microsoft.VisualStudio.Cascade.CascadePackage.JoinWorkspaceCommandHandler (ContractName=&quot;Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler&quot;)&apos; on part &apos;Microsoft.VisualStudio.Cascade.CascadePackage&apos;.
Element: Microsoft.VisualStudio.Cascade.CascadePackage.JoinWorkspaceCommandHandler (ContractName=&quot;Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler&quot;) --&gt;  Microsoft.VisualStudio.Cascade.CascadePackage

2) No exports were found that match the constraint: 
	ContractName	Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler
	RequiredTypeIdentity	Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler

Resulting in: Cannot set import &apos;Microsoft.VisualStudio.Cascade.CascadePackage.ShareWorkspaceCommandHandler (ContractName=&quot;Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler&quot;)&apos; on part &apos;Microsoft.VisualStudio.Cascade.CascadePackage&apos;.
Element: Microsoft.VisualStudio.Cascade.CascadePackage.ShareWorkspaceCommandHandler (ContractName=&quot;Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler&quot;) --&gt;  Microsoft.VisualStudio.Cascade.CascadePackage

3) No exports were found that match the constraint: 
	ContractName	Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService
	RequiredTypeIdentity	Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService

Resulting in: Cannot set import &apos;Microsoft.VisualStudio.Cascade.CascadePackage.ClientService (ContractName=&quot;Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService&quot;)&apos; on part &apos;Microsoft.VisualStudio.Cascade.CascadePackage&apos;.
Element: Microsoft.VisualStudio.Cascade.CascadePackage.ClientService (ContractName=&quot;Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService&quot;) --&gt;  Microsoft.VisualStudio.Cascade.CascadePackage

</description>
    <guid>{D86E17D6-7FC7-47F4-9259-21748EDFF93B}</guid>
    <hr>80131500</hr>
    <errorinfo></errorinfo>
  </entry>

回答

似乎这是由 LiveShare 引起的。来自Visual Studio 开发者社区

只需搜索

“CascadePackage”包未正确加载

至于我的两个问题：

在一台机器上……通过启动 VisualStudio 错误消失了。

在另一台机器上，我进入工具->获取工具和功能...
单击Individual components搜索实时共享。取消选中它。重启VS。

返回到工具-> 获取工具和功能...
单击
Individual components搜索 Live Share。回去检查一下。

有关 ActivityLog 的更多信息...

Visual Studio 使用/log更新选项。这将创建 ActivityLog.xml。
更多在这里/Log (devenv.exe)这是你也可以自己做的事情。

ActivityLog.xml 的描述部分将列出问题所在。这是 OP 中原始消息的编辑细分。

<entry>
    <record>894</record>
    <time>2021/03/05 13:52:21.259</time>
    <type>Error</type>
    <source>VisualStudio</source>
    <description>SetSite failed for package [CascadePackage]Source: &apos;System.ComponentModel.Composition&apos; 
    Description: The composition produced multiple composition errors, with 3 root causes. 
    The root causes are provided below. 
    Review the CompositionException.Errors property for more detailed information.


    1) No exports were found that match the constraint: 
	
    ContractName	Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler
	
    RequiredTypeIdentity	Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler


    Resulting in: Cannot set import &apos;
    Microsoft.VisualStudio.Cascade.CascadePackage.JoinWorkspaceCommandHandler (ContractName=&quot;
    Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler&quot;)&apos; on part &apos;
    Microsoft.VisualStudio.Cascade.CascadePackage&apos;.

    Element: Microsoft.VisualStudio.Cascade.CascadePackage.JoinWorkspaceCommandHandler (ContractName=&quot;
    Microsoft.VisualStudio.Cascade.Commands.IJoinCommandLineHandler&quot;) --&gt;  
    Microsoft.VisualStudio.Cascade.CascadePackage


    2) No exports were found that match the constraint: 
	
    ContractName	Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler
	
    RequiredTypeIdentity	
    Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler


    Resulting in: Cannot set import &apos;
    Microsoft.VisualStudio.Cascade.CascadePackage.ShareWorkspaceCommandHandler (ContractName=&quot;
    Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler&quot;)&apos; on part &apos;
    Microsoft.VisualStudio.Cascade.CascadePackage&apos;.

    Element: Microsoft.VisualStudio.Cascade.CascadePackage.ShareWorkspaceCommandHandler (ContractName=&quot;
    Microsoft.VisualStudio.Cascade.Commands.IShareCommandLineHandler&quot;) --&gt;  
    Microsoft.VisualStudio.Cascade.CascadePackage


    3) No exports were found that match the constraint: 
	ContractName	
    Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService
	RequiredTypeIdentity	
    Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService


    Resulting in: Cannot set import &apos;
    Microsoft.VisualStudio.Cascade.CascadePackage.ClientService (ContractName=&quot;
    Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService&quot;)&apos; on part &apos;
    Microsoft.VisualStudio.Cascade.CascadePackage&apos;.

    Element: Microsoft.VisualStudio.Cascade.CascadePackage.ClientService (ContractName=&quot;
    Microsoft.VisualStudio.Cascade.Contracts.IVsCascadeClientService&quot;) --&gt;  
    Microsoft.VisualStudio.Cascade.CascadePackage


    </description>
    <guid>{D86E17D6-7FC7-47F4-9259-21748EDFF93B}</guid>
    <hr>80131500</hr>
    <errorinfo></errorinfo>
  </entry>

  • Started getting this error after the 16.9.1 update followed your steps and worked perfectly.
  • I just left it unchecked... my code is not worth sharing!
  • @TimHarker Sometimes I need to share so someone else can help fix it!
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