Changes

<pre>FileNotFoundException: Could not load file or assembly 'System.IO.Compression.FileSystem, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies.</pre>

<pre>FileNotFoundException: Could not load file or assembly 'System.IO.Compression.FileSystem, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies.</pre>

Then something is wrong with your .NET Framework installation. In most cases, you can fix it by reinstalling [https://dotnet.microsoft.com/download/dotnet-framework/net452 .NET Framework 4.5.2] (Windows), [https://www.mono-project.com/ <tt>mono-complete</tt>] (Linux), or [https://www.mono-project.com/ Mono] (MacOS).

Then something is wrong with your .NET Framework (Windows) or Mono (Linux/Mac) installation. In most cases, you can fix it by reinstalling [https://dotnet.microsoft.com/download/dotnet-framework/net452 .NET Framework 4.5.2] (Windows), [https://www.mono-project.com/ <tt>mono-complete</tt>] (Linux), or [https://www.mono-project.com/ Mono] (MacOS).

In rare cases on Windows only, that won't fix it. Unfortunately that's difficult to resolve since .NET Framework is part of Windows itself. In those cases you may need to [https://support.microsoft.com/en-us/help/4026528/windows-reset-or-reinstall-windows-10 perform a Windows reset] (you can keep your files), ''or'' perform a clean reinstall of Windows. This is drastic, but usually fixes the issue.

In rare cases on Windows only, that won't fix it. Unfortunately that's difficult to resolve since .NET Framework is part of Windows itself. In those cases you may need to [https://support.microsoft.com/en-us/help/4026528/windows-reset-or-reinstall-windows-10 perform a Windows reset] (you can keep your files), ''or'' perform a clean reinstall of Windows. This is drastic, but usually fixes the issue.