Microsoft
Visual Studio
Visual Studio
  • Home
    • Problems
    • Suggestions
  • Downloads
    • Visual Studio IDE
    • Visual Studio Code
    • Azure DevOps
    • Team Foundation Server
    • Accounts and Subscriptions
  • Subscriber Access
      • Microsoft 365
      • Azure
      • Office 365
      • Dynamics 365
      • SQL
      • Windows 10
      • Windows Server
      • Enterprise Mobility + Security
      • Power BI
      • Teams
      • Visual Studio
      • Surface for Business
      • AI
      • Internet of Things
      • Azure Cognitive Services
      • Quantum
      • Research
      • Docs
      • TechNet
      • Developer Network
      • Windows Dev Center
      • Windows IT Pro Center
      • FastTrack
      • Partner Network
      • Solution Providers
      • Partner Center
      • Cloud Hosting
      • Education
      • Financial services
      • Government
      • Health
      • Manufacturing & resources
      • Retail
      • Security
      • Licensing
      • AppSource
      • Azure Marketplace
      • Events
    • View all
    Sign in

    Developer Community
    Get help from our community supported forum
    • Home /
    • Visual Studio for Mac /
    Searched and didn’t find your feedback?
    • Visual Studio
    • Visual Studio for Mac
    • .NET
    • C++
    • Azure DevOps
    • Azure DevOps Server (TFS)
    or
    • Visual Studio
    • Visual Studio for Mac
    • .NET
    • C++
    • Azure DevOps
    • Azure DevOps Server (TFS)
    Visual Studio
    Visual Studio for Mac
    .NET
    C++
    Azure DevOps
    Azure DevOps Server (TFS)
    0

    'System.Linq.Enumerable.ToHashSet' method exists unexpectedly

    visual studio for mac

    avatar image Tsubasa HIRANO reported May 11, 2017 at 12:57 AM

    Show comments 2

    Add comment

    I have installed the fix by upgrading to the latest version of Visual Studio. The issue is still not fixed:

    10 |10000 characters needed characters left characters exceeded
    avatar image Ashley Gazich [MSFT] Aug 02, 2017 at 02:01 PM
    0
    • Share
    avatar image Ashley Gazich [MSFT] Aug 11, 2017 at 02:31 PM
    0
    • Share
    thub.nodes.view.add-new-comment
    Add comment

    Solutions

    Follow

    Related Problems

    I cannot update or get new extensions
    0 Solution

    Sign in dialog hangs for VS for Mac which prevents me using Enterprise Features
    2 Solution

    Signing into Account hangs
    1 Solution

    SQL Server Reporting Tools for Mac
    1 Solution

    Could not load type of field 'Xamarin.Forms.Design.XamarinStudioXamlPreviewerView:androidService' (13)
    4 Solution

    Partial Async Voids cause roslyn to crash (csc6006)
    2 Solution

    Wrong language in Visual Studio installer for Mac
    5 Solution

    VS for mac with voiceover
    1 Solution

    Extensions dialog won't close sometimes
    1 Solution

    Error MSB4019: /Microsoft.WebApplication.targets" was not found
    1 Solution

    What's new

    • NEW Surface Pro 6
    • NEW Surface Laptop 2
    • NEW Surface Go
    • Xbox One X
    • Xbox One S
    • VR & mixed reality
    • Windows 10 apps
    • Office apps

    Store & Support

    • Account profile
    • Download Center
    • Sales & support
    • Returns
    • Order tracking
    • Store locations
    • Support
    • Buy online, pick up in store

    Education

    • Microsoft in education
    • Office for students
    • Office 365 for schools
    • Deals for students & parents
    • Microsoft Azure in education

    Enterprise

    • Microsoft Azure
    • Enterprise
    • Data platform
    • Find a solution provider
    • Microsoft partner resources
    • Microsoft AppSource
    • Manufacturing & resources
    • Financial services

    Developer

    • Microsoft Visual Studio
    • Windows Dev Center
    • Developer Network
    • TechNet
    • Microsoft developer program
    • Channel 9
    • Office Dev Center

    Company

    • Careers
    • About Microsoft
    • Company news
    • Privacy at Microsoft
    • Investors
    • Diversity and inclusion
    • Accessibility
    • Security
    English (United States)
    • Sitemap
    • Contact us
    • Privacy & cookies
    • Terms of use
    • Trademarks
    • Safety & eco
    • About our ads
    • © Microsoft 2018
    • Anonymous
    • Sign in
    • Spaces
    • Visual Studio
    • Visual Studio for Mac
    • .NET
    • C++
    • Azure DevOps
    • Azure DevOps Server (TFS)
    • Explore
    • Topics
    • Problems
    • Features
    • Users
    • Badges