Merge pull request #120473 from junczhu/import-troubleshooting-guide

docs: added troubleshooting guide to acr import images

Author: Jak-MS

articles/container-registry/container-registry-import-images.md

@@ -364,6 +364,15 @@ az acr import \
 Import-AzContainerRegistryImage -RegistryName myregistry -ResourceGroupName myResourceGroup -SourceRegistryUri docker.io/sourcerepo -SourceImage sourcerrepo:tag -Username <username> -Password <password>
 ```
 
+### Troubleshoot Import Container Images
+#### Symptoms and Causes
+- `The remote server may not be RFC 7233 compliant`
+  - The [distribution-spec](https://github.com/opencontainers/distribution-spec/blob/main/spec.md) allows range header form of `Range: bytes=<start>-<end>`. However, the remote server may not be RFC 7233 compliant.
+- `Unexpected response status code`
+  - Get an unexpected response status code from source repository when doing range query.
+- `Unexpected length of body in response`
+  - The received content length does not match the size expected. Expected size is decided by blob size and range header.
+
 ---
 
 ## Next steps