今天给Brackets安装Emmet插件，结果显示“Internal error”。
解决办法：
1.删除 “C:\Users\MyUserName\AppData\Roaming\Brackets”
2.从Brackets的插件网页：https://brackets-registry.aboutweb.com/ 下载Emmet插件安装包，下载地址为：https://s3.amazonaws.com/extend.brackets/brackets-emmet/brackets-emmet-1.2.1.zip
3.打开Brackets，依次打开“File -- Extension Manager ”，然后将刚才下载的Emmet插件安装包拖动到界面来手动安装，安装成功就会提示“Successfully！”
修改Emmet插件的快捷键：
手动修改C:\Users\HIPAA\AppData\Roaming\Brackets\extensions\user\brackets-emmet\keymap.json
keymap.json默认内容为：
{
"expand_abbreviation_with_tab": "Tab",
"expand_abbreviation": "Ctrl-Alt-Enter",
"balance_outward": "Ctrl-Alt-B",
"balance_inward": "Shift-Ctrl-Alt-B",
"matching_pair": "Shift-Ctrl-T",
"wrap_with_abbreviation": "Shift-Ctrl-A",
"next_edit_point": "Ctrl-Alt-Right",
"prev_edit_point": "Ctrl-Alt-Left",
"select_line": "Ctrl-Shift-L",
"merge_lines": "Ctrl-Shift-M",
"toggle_comment": "Ctrl-\\",
"split_join_tag": "Ctrl-Shift-J",
"remove_tag": "Ctrl-Shift-K",
"evaluate_math_expression": "Shift-Ctrl-Y",
"update_tag": "Shift-Ctrl-I",
"increment_number_by_1": "Ctrl-Shift-Up",
"decrement_number_by_1": "Ctrl-Shift-Down",
"increment_number_by_01": "Ctrl-Shift-Alt-Up",
"decrement_number_by_01": "Ctrl-Shift-Alt-Down",
"increment_number_by_10": "Ctrl-Alt-Up",
"decrement_number_by_10": "Ctrl-Alt-Down",
"select_next_item": "Shift-Ctrl-.",
"select_previous_item": "Shift-Ctrl-,",
"reflect_css_value": "Shift-Ctrl-Alt-R",
"insert_formatted_line_break": "Enter",
"interactive_expand_abbreviation": "Ctrl-Shift-Alt-Enter"
}