c:\Users\Toshiba!\Desktop\Siddhant\PeerLibrary\microscope\.meteor\local\build\se
rver\server.js:345
}).run();
^
ReferenceError: Mongo is not defined
at app/lib/collections/posts.js:1:28
at c:\Users\Toshiba!\Desktop\Siddhant\PeerLibrary\microscope\.meteor\local\b
uild\server\server.js:306:12
at Array.forEach (native)
at Function._.each._.forEach (c:\Program Files\Meteor\lib\node_modules\under
score\underscore.js:78:11)
at run (c:\Users\Toshiba!\Desktop\Siddhant\PeerLibrary\microscope\.meteor\lo
cal\build\server\server.js:239:7)
=> Exited with code: 1
=> Your application is crashing. Waiting for file change.
Any help would be appreciated, because I can't progress further without adding Posts.