mkdocs crashed with FileNotFoundError in build_pages(): [Errno 2] No such file or directory: 'docs/Home'

Here's what I got when running on the command line:

colan@snake[Thu 3 18:08]% mkdocs serve
Traceback (most recent call last):
  File "/usr/bin/mkdocs", line 9, in <module>
    load_entry_point('mkdocs==0.11.1', 'console_scripts', 'mkdocs')()
  File "/usr/lib/python3/dist-packages/mkdocs/main.py", line 60, in run_main
    main(cmd, args=sys.argv[2:], options=dict(opts))
  File "/usr/lib/python3/dist-packages/mkdocs/main.py", line 33, in main
    serve(config, options=options)
  File "/usr/lib/python3/dist-packages/mkdocs/serve.py", line 82, in serve
    build(config, live_server=True)
  File "/usr/lib/python3/dist-packages/mkdocs/build.py", line 267, in build
    build_pages(config)
  File "/usr/lib/python3/dist-packages/mkdocs/build.py", line 207, in build_pages
    input_content = io.open(input_path, 'r', encoding="utf_8").read()
FileNotFoundError: [Errno 2] No such file or directory: 'docs/Home'

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: mkdocs 0.11.1-3
ProcVersionSignature: Ubuntu 4.2.0-30.36-generic 4.2.8-ckt3
Uname: Linux 4.2.0-30-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Thu Mar 3 18:08:26 2016
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/mkdocs
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/mkdocs serve
PythonArgs: ['/usr/bin/mkdocs', 'serve']
SourcePackage: python-mkdocs
Title: mkdocs crashed with FileNotFoundError in build_pages(): [Errno 2] No such file or directory: 'docs/Home'
UpgradeStatus: Upgraded to wily on 2015-11-30 (94 days ago)
UserGroups: adm cdrom dip lp lpadmin plugdev sambashare staff sudo video whoopsie wireshark www-data