better error & suggestion message

Author: OladapoAjala

pkg/skaffold/parser/config.go

@@ -136,7 +136,7 @@ func getConfigs(ctx context.Context, cfgOpts configOpts, opts config.SkaffoldOpt
 	for _, cfg := range parsed {
 		config, ok := cfg.(*latest.SkaffoldConfig)
 		if !ok {
-			return nil, nil, sErrors.SkaffoldConfigUpgradeErr(cfg.GetVersion())
+			return nil, nil, sErrors.SkaffoldConfigUpgradeErr(cfg.GetVersion(), latest.Version)
 		}
 
 		for _, profile := range config.Profiles {
@@ -159,7 +159,7 @@ func getConfigs(ctx context.Context, cfgOpts configOpts, opts config.SkaffoldOpt
 	for i, cfg := range parsed {
 		config, ok := cfg.(*latest.SkaffoldConfig)
 		if !ok {
-			return nil, nil, sErrors.SkaffoldConfigUpgradeErr(cfg.GetVersion())
+			return nil, nil, sErrors.SkaffoldConfigUpgradeErr(cfg.GetVersion(), latest.Version)
 		}
 
 		processed, err := processEachConfig(ctx, config, cfgOpts, opts, r, i, fieldsOverrodeByProfile)

pkg/skaffold/schema/errors/errors.go

@@ -202,16 +202,16 @@ func ConfigUnknownAPIVersionErr(version string) error {
 }
 
 // SkaffoldConfigUpgradeErr specifies that skaffold config needs to be upgraded to the latest version.
-func SkaffoldConfigUpgradeErr(version string) error {
-	msg := fmt.Sprintf("skaffold config version is %s not *latest.SkaffoldConfig", version)
+func SkaffoldConfigUpgradeErr(currentVersion, targetVersion string) error {
+	msg := fmt.Sprintf("skaffold cannot auto-upgrade the config from version %s to version %s", currentVersion, targetVersion)
 	return sErrors.NewError(fmt.Errorf(msg),
 		&proto.ActionableErr{
 			Message: msg,
 			ErrCode: proto.StatusCode_CONFIG_UPGRADE_ERR,
 			Suggestions: []*proto.Suggestion{
 				{
 					SuggestionCode: proto.SuggestionCode_CONFIG_FIX_SKAFFOLD_CONFIG_VERSION,
-					Action:         "Upgrade skaffold config version to the latest",
+					Action:         fmt.Sprintf("Upgrade skaffold config version to %s manually", targetVersion),
 				},
 			},
 		})