Vim installation Jedi-vim error (e121:undefined variable:g:jedi#call_signature_escape) __gvim

Environment: Win7 64-bit Gvim version: 7.4

Jedi:git Clone Https://github.com/davidhalter/jedi-vim.git

The error is shown in the following illustration:

Solution:
https://github.com/davidhalter/jedi-vim/issues/233

After you add the following code to the _VIMRC file, the error disappears:

Set Encoding=utf-8

Postscript:
In fact, I have encountered other errors before this mistake, the error message is no longer described in this, just want to suggest that before using Jedi-vim, it is best to update it to the latest version, can effectively avoid some inexplicable errors, methods:
Enter the Jedi-vim warehouse directory and execute the command:

git submodule update--init