Oracle Cloud Common Errors Overview OCI API errors are notoriously cryptic. (404) could mean an IAM policy is missing or you typed the OCID wrong — the error is intentionally ambiguous for security. (401) covers six different config file problems. has different fixes depending on your SDK language, OS, and whether you are behind a corporate proxy. Purpose: A diagnostic decoder ring mapping every common OCI error to its real root cause and fix, with runnable diagnostic commands for each scenario. Prerequisites - An OCI account with configured (see ) - Python 3.8+ with installed - OCI CLI insta…