[Solved] WordPress：The plugin generated 167 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

2024/01/19 15:49

Error

WordPress：The plugin generated 167 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

Solution

Just refresh the page. It solved my issue.