php : Installing dependencies from lock file
At line:1 char:1
+ php C:\php\composer.phar install 
--ignore-platform-req=ext-fileinfo - ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~
    + CategoryInfo          : NotSpecified: (Installing depende 
   ncies from lock file:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError
 
Verifying lock file contents can be installed on current 
platform.
Package operations: 72 installs, 0 updates, 0 removals
    Failed to download doctrine/lexer from dist: The zip 
extension and unzip/7z commands are both missing, skipping.
The php.ini used by your command-line PHP is: C:\php\php.ini
    Now trying to download from source

In GitDownloader.php line 82:
                                                            
  git was not found in your PATH, skipping source download  
                                                            

install [--prefer-source] [--prefer-dist] [--prefer-install 
PREFER-INSTALL] [--dry-run] [--download-only] [--dev] 
[--no-suggest] [--no-dev] [--no-autoloader] [--no-progress] 
[--no-install] [--audit] [--audit-format AUDIT-FORMAT] 
[-v|vv|vvv|--verbose] [-o|--optimize-autoloader] 
[-a|--classmap-authoritative] [--apcu-autoloader] 
[--apcu-autoloader-prefix APCU-AUTOLOADER-PREFIX] 
[--ignore-platform-req IGNORE-PLATFORM-REQ] 
[--ignore-platform-reqs] [--] [<packages>...]

