Compiler error: Couldn't find ICU package (Arch linux)

Hiya, I just downloaded release 0.13.0, and when I open the app, the compiler instantly gives me this:

```
Ink compiler had an unexpected error ☹

Process terminated. Couldn't find a valid ICU package installed on the system. Set the configuration flag System.Globalization.Invariant to true if you want to run with no globalization support.
at System.Environment.FailFast(System.String)
at System.Globalization.GlobalizationMode.GetGlobalizationInvariantMode()
at System.Globalization.GlobalizationMode..cctor()
at System.Globalization.CultureData.CreateCultureWithInvariantData()
Ink compiler had an unexpected error ☹

at System.Globalization.CultureData.get_Invariant()
at System.Globalization.CultureInfo..cctor()
at System.Globalization.CompareInfo..cctor()
at System.String.EndsWith(System.String, System.StringComparison)
at Ink.CommandLineTool..ctor(System.String[])
at Ink.CommandLineTool.Main(System.String[])
Ink compiler had an unexpected error ☹

Process terminated. Couldn't find a valid ICU package installed on the system. Set the configuration flag System.Globalization.Invariant to true if you want to run with no globalization support.
at System.Environment.FailFast(System.String)
at System.Globalization.GlobalizationMode.GetGlobalizationInvariantMode()
at System.Globalization.GlobalizationMode..cctor()
at System.Globalization.CultureData.CreateCultureWithInvariantData()
at System.Globalization.CultureData.get_Invariant()
at System.Globalization.CultureInfo..cctor()
at System.Globalization.CompareInfo..cctor()
at System.String.EndsWith(System.String, System.StringComparison)
at Ink.CommandLineTool..ctor(System.String[])
at Ink.CommandLineTool.Main(System.String[])
```

Am I missing a dependency or something? There arent really many clear instructions