Due to the extent of customization options available for Template it’s no surprise that something could go wrong. If it does it’s nice to know what that error message means;

• "<template> output was empty" - This occurs if the template being used either has no content or the result after being rendered is empty. If you think about it, you can’t exactly copy an empty string to the clipboard can you? Go on and try, I’ll wait... I told you so. What would you expect to paste after all.
• "The URL is not properly encoded" – This occurs if you are attempting to use Template on a URL that is not properly encoded. This is due to the underlying technology used for extract the information on each URL (e.g. domain, port, parameters). This should be extremely rare and could probably be impossible to occur.
• "An error occurred while collecting information" – This occurs when an unexpected error occurred when building up the template data. Please can you raise an issue while providing as much information as possible so I can investigate and fix it.
• "An error occurred while deriving the activated template" - This occurs only in exceptional cases when the activated template cannot be found. Please can you raise an issue while providing as much information as possible so I can investigate and fix it.
• "An error occurred while requesting information" - This occurs if the extension receives an invalid request. This could either be a bug or another extension sending bad requests.
• "There was a problem parsing an expression" - This occurs if the template contained an invalid CSS selector for a select* operation or XPath expression for an xpath* operation.
• "<template> could not be copied" – This occurs when an unexpected error occurred somewhere during the process. Please can you raise an issue while providing as much information as possible so I can investigate and fix it.
• "<shortener> has not been configured correctly" – This occurs if the active URL shortener requires a target URL to be specified and this has not been done (e.g. YOURLS).
• "<shortener> experienced a problem while shortening <url>" – This occurs if the Template is unable to get a successful response from the active URL shortener. This can be for multiple reasons but you should check your configuration for that service first.
• "<shortener> experienced a problem" – This occurs when an unexpected error occurred during the request to the active URL shortener. Please can you raise an issue while providing as much information as possible so I can investigate and fix it.