Clearer error message

Signed-off-by: David Gageot <david.gageot@docker.com>

Author: dgageot

pkg/oci/package.go

@@ -8,7 +8,6 @@ import (
 	"strings"
 	"time"
 
-	latest "github.com/docker/cagent/pkg/config/v2"
 	"github.com/goccy/go-yaml"
 	v1 "github.com/google/go-containerregistry/pkg/v1"
 	"github.com/google/go-containerregistry/pkg/v1/empty"
@@ -17,6 +16,7 @@ import (
 	"github.com/google/go-containerregistry/pkg/v1/types"
 
 	"github.com/docker/cagent/pkg/config"
+	latest "github.com/docker/cagent/pkg/config/v2"
 	"github.com/docker/cagent/pkg/content"
 	"github.com/docker/cagent/pkg/path"
 	"github.com/docker/cagent/pkg/version"

pkg/remote/pull.go

@@ -34,7 +34,7 @@ func Pull(ctx context.Context, registryRef string, force bool, opts ...crane.Opt
 		if meta, metaErr := store.GetArtifactMetadata(localRef); metaErr == nil {
 			if meta.Digest == remoteDigest {
 				if !hasCagentAnnotation(meta.Annotations) {
-					return "", fmt.Errorf("artifact %s found in store wasn't created by cagent", localRef)
+					return "", fmt.Errorf("artifact %s found in store wasn't created by `cagent push`\nTry to push again with `cagent push` (cagent >= v1.10.0)", localRef)
 				}
 				return meta.Digest, nil
 			}
@@ -51,7 +51,7 @@ func Pull(ctx context.Context, registryRef string, force bool, opts ...crane.Opt
 		return "", fmt.Errorf("getting manifest from pulled image: %w", err)
 	}
 	if !hasCagentAnnotation(manifest.Annotations) {
-		return "", fmt.Errorf("artifact %s wasn't created by cagent", localRef)
+		return "", fmt.Errorf("artifact %s wasn't created by `cagent push`\nTry to push again with `cagent push` (cagent >= v1.10.0)", localRef)
 	}
 
 	digest, err := store.StoreArtifact(img, localRef)