No Linkable Item in

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No valid resource detected

When you invoke the Hook window, it needs to identify the current document, resource, or context. In versions prior to Hook 1.2, if Hook cannot identify the current context, the status bar message will say,

No linkable item found in App. Learn more

where “App” is the name of the app. For example, “No linkable item found in Mail.”

There are four likely explanations for this situation.

1. The foreground document has not been saved

It is impossible to link to (or from) a document until it is saved. Some applications (e.g. Notes.app, Bear, nvALT) save new documents as soon as they’re created, but many applications (e.g. TextEdit, BBEdit, Photoshop) let you open a new window and start writing or modifying new documents which don’t exist in the file system and cannot be hooked until they are saved.

Tip: Save new documents before trying to hook them.

2. The message is a draft email, or the email app does not have automation

Hook normally identifies emails by their standard “Message-ID” , per Section 3.6.4 of RFC 2822.

Until an email message is sent, the message does not have an ID. Therefore it cannot be referenced.

If you happen to use the Spark email client by Readdle, as of 2019-08-23 it still does not support automation to get the name and ID of emails. Mail.app, MailMate and Airmail 3 and even Outlook do support automation.

Tip: Use an email app that supports automation, and make sure you are dealing with a message that has been sent.

3. No document is selected , open or loaded in the frontmost window

The context is determined by the contents of the frontmost window. If another window is in front, Hook won’t identify the correct context.

If you have accessed a web page that has not yet loaded, it is not possible for apps (including Hook) to tell what the address or name of the web page is.

Tip: Ensure that the correct window is frontmost, and that the desired document is open or selected.

4. The Application is unsupported

Most macOS applications work with Hook but some require special support for their integration.

Tip: Learn more about integrating Hook with unsupported applications.

Future possibilities

As of this writing, Hook is at version 1.3 Hook is continuously evolving and has a pleasantly suprising product road map. We look forward to making announcements that will make this document less relevant.

Tip: Subscribe to the Hook newsletter or Hook productivity forum.

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