```batchfile
call "c:\Program Files (x86)\nodejs\nodevars.bat"
call npm.cmd install grunt-contrib-compress
call npm.cmd install grunt-contrib-clean
call npm.cmd install -g grunt-cli
call grunt.cmd
```

Fix build by installing grunt
user
```batchfile
call "c:\Program Files (x86)\nodejs\nodevars.bat"
call npm.cmd install grunt
call npm.cmd install grunt-contrib-compress
call npm.cmd install grunt-contrib-clean
call npm.cmd install -g grunt-cli
call grunt.cmd
```
assistant