> ## Documentation Index
> Fetch the complete documentation index at: https://tyk.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# “API catalog not found“ error in the Developer Portal

<Warning>
  **Attention:**

  You’ve reached a page related to the *Tyk Classic Portal*. If you were searching for *API documentation of the new Tyk
  Developer Portal* please use the latest
  [Postman collection](/5.8/product-stack/tyk-enterprise-developer-portal/api-documentation/tyk-edp-api) page.

  <br />

  <br />

  **Future deprecation of Tyk Classic Portal**

  This product is no longer actively developed as it
  has been superseded by the new [Tyk Developer Portal](/5.8/portal/overview/intro).

  <br />

  Please note that the Tyk Classic Portal now has limited support and maintenance. Please contact us at
  [support@tyk.io](<mailto:support@tyk.io?subject=Tyk classic developer portal>)if you have any questions.
</Warning>

### Description

Users receive an "API catalog not found" error message when they visit the Developer Portal.

### Cause

The catalog hasn't been initialised yet.

### Solution

We have [tutorials](/5.8/getting-started/tutorials/publish-api) on how to publish to a developer portal using API catalogs. It may also be worth checking that the key generated by the policy hasn't expired.