Cataclysm 4.15 compile errors

Trying to compile this:

https://github.com/NvPhysX/UnrealEngine/tree/CataclysmDemo-4.15

I get multiple compile errors in the localisation.automation file.

I can get the Cataclysm 4.13 release to work but the 4.15 branch is broken.

private void ProcessLocalizationProjects (//skipped a few lines here)
{
var EditorExe = CombinePaths(CmdEnv.LocalRoot, @“Engine/Binaries/Win64/UE4Editor-Cmd.exe”);
var RootWorkingDirectory = CombinePaths(UEProjectRoot, LocalizationBatch.UEProjectDirectory);

	// Try and find our localization provider
	LocalizationProvider LocProvider = null;
	{
		LocalizationProvider.LocalizationProviderArgs LocProviderArgs;
		LocProviderArgs.RootWorkingDirectory = RootWorkingDirectory;
		LocProviderArgs.RemoteFilenamePrefix = LocalizationBatch.RemoteFilenamePrefix;
		LocProviderArgs.Command = this;
		LocProviderArgs.PendingChangeList = PendingChangeList;
		LocProvider = LocalizationProvider.GetLocalizationProvider(LocalizationProviderName, LocProviderArgs);
	}

the localisationprovider lines have errors.

Severity Code Description Project File Line Suppression State
Error CS1061 ‘ProjectInfo’ does not contain a definition for ‘LocalizationSteps’ and no extension method ‘LocalizationSteps’ accepting a first argument of type ‘ProjectInfo’ could be found (are you missing a using directive or an assembly reference?) AutomationScripts.Automation C:\cat4.15\Engine\Source\Programs\AutomationTool\Scripts\Localisation.Automation.cs 322 Active

any advice? Is it my computer or is it the branch?