Programming Tutorials

  Few things are more frustrating in cloud development than a code snippet that works perfectly in a local environment but fails immediately upon deployment with a cryptic   404 Not Found . In the context of Google Cloud's Vertex AI—specifically when working with generative models like Gemini 1.5 Pro or Imagen—this error rarely means the internet is down. It almost always points to a mismatch between  where your client thinks the model is  and  where the model actually resides . If you are seeing errors such as  404 Publisher Model Not Found ,  Resource not found , or  404 The specified endpoint is not found , you are likely falling into the "Regional Endpoint Trap" or dealing with a subtle IAM misconfiguration. This guide provides the root cause analysis and the production-ready code required to fix these connectivity issues permanently. The Root Cause: The Regional Endpoint Trap To understand the fix, you must understand how Google Cloud routes ...