Removing plugin causes error if current selected keymap is one of the plugin keymaps

[muyuxunqing]

This is a good plugin, but I prefer ideavim to this plugin. After deleting the plugin, an error occurs every time I restart idea.

What's the problem

[amibiz]

Thanks @muyuxunqing for opening an issue, I will try to reproduce and update with a fix asap.

[amibiz]

I was able to reproduce the issue using the following steps:

1. Install the plugin
2. Create custom keymap based on ErgoKeys (QWERTY) by duplicating it
3. Uninstall the plugin

Because the cloned keymap uses the ErgoKeys (QWERTY) keymap as parent, after uninstalling the plugin, IntelliJ can not find the parent keymap and shows the error notification.

For now, suggest to delete any custom keymap based on the plugin as a workaround.

@muyuxunqing can you please confirm if you have a custom keymap based on ErgoKeys (QWERTY)?

[muyuxunqing]

I don't have a custom keymap based on ErgoKeys (QWERTY)，but I seem to have solved the problem.

In fact, this error disappeared after I reinstalled the plug-in, but once you delete the plugin, an error will appear.
At your prompt, I reconsidered the reasons and made the following attempts.

1. Reinstall the plugin

2. Select "Windows" in Settings-Keymap
   

3. Delete the plugin

Finally, the problem was solved successfully.

The problem is that I didn't modify my KeyMap when deleting the plugin.
Later, I repeated the error and fixed the problem again
Finally, @amibiz thanks！

[amibiz]

Thanks @muyuxunqing, with your steps I was able to reproduce the exact issue:

1. Install the plugin
2. Change the current keymap to one of the plugin ones
3. Uninstall the plugin

I will investigate a fix that solves the issue.

Also, opened #31