Running "fake new fsx="post title" followed by "fake generate" fails

[ioancw]

Description

Running "fake new fsx="post title" followed by "fake generate" fails with the following error:

Running build failed.
Error:
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at FSharp.CodeFormat.CodeFormatAgent.ParseSource (System.String file, System.String source, Microsoft.FSharp.Core.FSharpOption1[T] options, Microsoft.FSharp.Core.FSharpOption1[T] defines) [0x0002d] in <5750b7f77dc004b2a7450383f7b75057>:0
at FSharp.Literate.ParseScript.parseScriptFile (System.String file, System.String content, FSharp.Literate.CompilerContext ctx) [0x00001] in <5750b7fc9515653da7450383fcb75057>:0

Repro steps

Please provide the steps required to reproduce the problem
Follow steps from:
http://fsprojects.github.io/FsBlog/blog/2013/11-09-getting-started/index.html

i.e.

1. git clone git://github.com/fsprojects/FsBlog.git FsBlog
2. cd FsBlog/Code
3. sh build
4. sh fake new fsx="post title"
5. sh fake generate

Step 5 fails.

Expected behavior

Works

Actual behavior

It doesn't

Known workarounds

None

Related information

.NET Core SDK (reflecting any global.json):
Version: 2.1.302
Commit: 9048955601

Runtime Environment:
OS Name: Mac OS X
OS Version: 10.14
OS Platform: Darwin
RID: osx-x64
Base Path: /usr/local/share/dotnet/sdk/2.1.302/

Host (useful for support):
Version: 2.1.2
Commit: 811c3ce6c0

.NET Core SDKs installed:
2.1.4 [/usr/local/share/dotnet/sdk]
2.1.302 [/usr/local/share/dotnet/sdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.2 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.2 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.0.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.2 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]