Support » Plugin: Widget Importer & Exporter » Can’t get it to work
2 months, 3 weeks ago
Doesn’t recognize export file created by the same freshly installed plugin when trying to import.
Here is a probable solution: https://wordpress.org/support/topic/seeing-this-error-you-must-upload-a-wie-file-generated-by-this-plugin-2/
If that’s not the issue then please provide the error message or describe in detail what happened in a post on the support forum.