</td></tr><tr><td>Level</td><td>Error</td></tr></tbody></table></div><p>This message occurs when more than one Sidecar resource in a namespace does not define any workload selector. This can lead to undefined behavior. See the reference for the <a href=/v1.24/docs/reference/config/networking/sidecar/>Sidecar</a> resource for more information.</p><p>To fix this, ensure that each namespace has only one Sidecar resource without a workload selector.</p></article><nav class=pagenav><div class=left><a title href=