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How_to_install_Swift5_on_Windows10.md

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How to install Swift 5 on Windows?

  1. Install Ubuntu shell. More info can be found here.

  2. Check which version of Ubuntu is running:

    • Open Ubuntu terminal and execute

      lsb_release -a

  3. Download the correct version of Swift. Use the following command.

    If you don't have wget you can install it with the following commnad sudo apt-get install wget.

    wget https://swift.org/builds/swift-5.1.4-release/ubuntu1804/swift-5.1.4-RELEASE/swift-5.1.4-RELEASE-ubuntu18.04.tar.gz

    This link should be updated once a more recent version is released.

  4. You have to extract the archive.

    tar -xvzf swift-5.1.4-RELEASE-ubuntu18.04.tar.gz

  5. You can rename the folder, so it can be easily accessed to swift-5.1 for example

    mv swift-5.1.4-RELEASE-ubuntu18.04 swift-5.1

At this point you will have swift installed on your Windows in your Ubuntu shell. To run it you have to use the full path to swift binary, which probably will be: ~/swift-5.1/usr/bin/swift

For best results, you can try to merge the content of swift-5.1 directory with the files in /usr.

sudo cp -r ~/swift-5.1/usr /

If you do that, please use the correct full path in the next section, which should be /usr/bin/sourcekit-lsp and /usr/bin.

How to use VSCode to write and run easily swift?

  1. You have to install VSCode from here

  2. Open the Ubuntu shell and write

     code hello.swift

    This will start VSCode in special mode called WSL: Ubuntu. You should install all extensions in that very mode! If the extensions are not installed in that mode, they can't be used from your Ubuntu shell.

  3. This will open VSCode in special mode (WSL: Ubuntu) so it knows it has been started from the Ubuntu shell.

  4. Install the following plugins:

    • SourceKit-LSP Visual Studio Code and configure it with correct values (my user is called emil, yours is probably something else):

    In both options you need to add the full path.

     Server Path: /home/emil/swift-5.1/usr/bin/sourcekit-lsp
 Toolchain Path: /home/emil/swift-5.1/usr/bin

    more info

    • Code Runner and configure it with the following value in Execcutor Map By File Extension if you have installed swift toolchain in your home directory. (code-runner.executorMapByFileExtension).

        "code-runner.executorMap": {
      "swift": "/home/emil/swift-5.1/usr/bin/swift",
  }

    Don't forget to update the full path to swift binary.

    You can use Ctrl + Alt + N to Run a file with .swift extension.

FAQ

When I try to run swift compiler I see some strange errors:

  1. For example:

     /home/geoeg/swift-5.1/usr/bin/swift: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory

    This ususally means that some libraries are not installed in your Ubuntu distribution (shell). You have to figure out which are the missing packages. Google can be your friend. In the example above you have to search for: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory and look for a solution that works. Here is one that works. (This will isntall libatomic1 package on your computer.)

     sudo apt-get update
 sudo apt-get install libatomic1

    Another similar problem:

     /home/ivanln/swift5.1/usr/bin/swift: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such  file or directory

    Again - the best advice is to search for solution. One that might work from the results returned by Google:

     sudo ln -s /usr/lib/libtinfo.so /usr/lib/libtinfo.so.5