Attempted to create, modify or delete an instance of field with name field_icon on entity type node when the field storage does not exist.....

Hi Aman,

Thank you for reporting this issue! I will look into it.

Hmm, I'm not getting any errors when I try to reproduce this. I've tried reinstalling on an existing site, and installing on a clean Drupal installation. I'll go through the stack trace, to see if I can find a way to reproduce this

Alright, I've managed to force this to be reproduced. Here's what I did:

• Install the module
• Create an icon field
• Export the configuration
• Delete the file "field.storage.node.field_icon.yml"
• Remove some logic in the config importer to ignore all import errors and do it anyways
• Import the broken config
• Observe the same error

My conclusion is the following:
For some reason, your Drupal installation failed to create the field storage after creating the field. At this point, I do not know why this is. I'm not ruling out that this module is causing the issue, but I believe it to be another factor.

What you might want to try, is manually importing a "field.storage.node.field_icon.yml" file to see if that solves the issue. I've provided one (without a UUID, so it should be fine to import) for you to try. If this doesn't solve your error, at least it gets us a step further :).

Note: the file has been renamed by Drupal.org, so you want to remove the underscore after "node" from the filename before importing