Problem

1. Created a new Octopress post with rake in Windows 7’s Git Bash.
2. Wrote the post using gVim.

3. Ran rake generate, and got an YAML exception:

   YAML Exception reading [filename].markdown: invalid byte sequence in UTF-8

Solution

• Searched “yaml exception in reading invalid byte sequence in utf-8” on Google. Sites found:
  1. A related Stack Overflow question
  2. A reported Jekyll issue on GitHub

Finally, after glimpsing the above web pages, I realized that the file enconding should be UTF-8.

Thus, the editor command :se fenc=utf8 | wq will do.