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Error: Cannot read properties of undefined (reading 'address')

  • February 11, 2026
  • 4 replies
  • 25 views

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Hi all,

I’ve been developing an app with the Strava API like many of you and have run into a novel issue as of yesterday. Oauth is complete, GET, POST, and PUT requests were working, but during some debugging yesterday I got: Error:Cannot read properties of undefined (reading 'address').

I originally ran into this issue in my IDE and decided to try to reach the Strava API directly, same issue, so was not the program. Any GET request returns this and it’s likely not a token issue as that would just return a normal auth error in the past (as recent as yesterday just before this new error started). Originally the error popped up for GET activity, but now even sending a GET to retrieve a new access token returns this error. It looks like this error is returned while trying to read some undefined object property address (likely either athlete or activity?). Has there been any changes to the API recently, like within the past few days?

I’m hesitant to say it’s on the API server side, but was wondering if anyone else is running into a similar issue.

 

Cheers

 

4 replies

Jan_Mantau
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  • Hub Superuser Alumni
  • February 11, 2026

I’m not aware of issues. Can you post screenshots for this when using openly available tools to connect to the Strava API?


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  • Author
  • Hub Rookie
  • February 11, 2026

Waiting for mods to review and approve my reply, apologies...


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  • Author
  • Hub Rookie
  • February 11, 2026

For more context the error initially arose as a 404 activity not found in my app. To troubleshoot I used postman to isolate the GET request, which returned the error in question. The token seems not to be an issue since entering the wrong token returns a 401 auth error in my app, while the correct token returns the 404.


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  • Author
  • Hub Rookie
  • February 11, 2026

UPDATE: Can connect to API server intermittently, spamming api calls returns responses every few tries. Looking more and more like API server issue.