I created a lightning component to override the standard "new" opportunity. The problem is that when I implement the force:hasRecordId interface, the recordId shows in my debugger as "undefined". I need to use the current id of the account or contact to pre-populate fields in my component. How can I do this?

Here is the documentation I found, which seems to explain that recordId is undefined in my situation.

https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/ref_interfaces_force_hasrecordid.htm

The recordId attribute is set only when you place or invoke the component in an explicit record context. For example, when you place the component directly on a record page layout, or invoke it as an object-specific action from a record page or object home. In all other cases, such as when you invoke the component as a global action, or create the component programmatically inside another component, recordIdisn’t set, and your component shouldn’t depend on it.
These unsupported contexts include a few contexts that might seem like they should have access to the current record. Examples of these other contexts include the following:
Invoking the component from a global action (even when you’re on a record page)
Invoking the component from header or footer navigation in a community (even if the page shows a record)
force:hasRecordId and force:hasSObjectName are unsupported in these contexts. While the marker interfaces still add the relevant attribute to the component, accessing either attribute generally returns null or undefined.

Thanks for helping.