To replicate, just type
Setup.bat --force
from the command line.
The result:
Invalid command line parameter: -force
Usage:
GitDependencies [options]
Options:
--all Sync all folders
--include=<X> Include binaries in folders called <X>
--exclude=<X> Exclude binaries in folders called <X>
--prompt Prompt before overwriting modified files
--force Always overwrite modified files
--root=<PATH> Set the repository directory to be sync
--threads=<N> Use N threads when downloading new files
--dry-run Print a list of outdated files and exit
--max-retries Override maximum number of retries per file
--proxy=<user:password@url> Sets the HTTP proxy address and credentials
--cache=<PATH> Specifies a custom path for the download cache
--cache-size-multiplier=<N> Cache size as multiplier of current download
--cache-days=<N> Number of days to keep entries in the cache
--no-cache Disable caching of downloaded files
Detected settings:
Excluded folders: Mac, HTML5, Android, Linux
Proxy server: none
Download cache: D:\UnrealEngine\4.8\UnrealEngine\.git\ue4-gitdeps
Default arguments can be set through the UE4_GITDEPS_ARGS environment variable.
Registering git hooks...
Installing prerequisites...