Brackets Installation Emmet plugin displays "Internal Error" solution

Today to brackets install Emmet plug-in, the results show "Internal error."
Solution:
1. Delete "C:\Users\MyUserName\AppData\Roaming\Brackets"

2. From Brackets Plugin Web page: https://brackets-registry.aboutweb.com/download Emmet plugin installation package, download address: https://s3.amazonaws.com/ Extend.brackets/brackets-emmet/brackets-emmet-1.2.1.zip
3. Open brackets, turn on "File--Extension Manager", and then drag the Emmet plug-in installation package that you just downloaded to the interface to manually install, the installation will prompt "successfully! ”

To modify the shortcut keys for the Emmet plug-in:

Manually Modify C:\Users\HIPAA\AppData\Roaming\Brackets\extensions\user\brackets-emmet\keymap.json

Keymap.json Default content is:
{
"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"
}