diff --git a/ro_core/core/core.go b/ro_core/core/core.go
index 5825574..90aadae 100644
--- a/ro_core/core/core.go
+++ b/ro_core/core/core.go
@@ -21,8 +21,8 @@
 	"github.com/opencord/voltha-go/common/log"
 	"github.com/opencord/voltha-go/db/kvstore"
 	"github.com/opencord/voltha-go/db/model"
-	"github.com/opencord/voltha-protos/go/voltha"
 	"github.com/opencord/voltha-go/ro_core/config"
+	"github.com/opencord/voltha-protos/go/voltha"
 	"google.golang.org/grpc"
 )
 
diff --git a/ro_core/core/device_agent.go b/ro_core/core/device_agent.go
index ca70d48..dfaf767 100644
--- a/ro_core/core/device_agent.go
+++ b/ro_core/core/device_agent.go
@@ -202,4 +202,4 @@
 		return device.GetImages(), nil
 	}
 	return nil, status.Errorf(codes.NotFound, "device-%s", agent.deviceId)
-}
\ No newline at end of file
+}
diff --git a/ro_core/core/device_manager.go b/ro_core/core/device_manager.go
index 9e67b72..f3a1f6c 100644
--- a/ro_core/core/device_manager.go
+++ b/ro_core/core/device_manager.go
@@ -176,7 +176,7 @@
 	if agent := dMgr.getDeviceAgent(deviceId); agent != nil {
 		return agent, nil
 	}
-	return nil, status.Error(codes.NotFound, deviceId)  // This should nto happen
+	return nil, status.Error(codes.NotFound, deviceId) // This should nto happen
 }
 
 // loadRootDeviceParentAndChildren loads the children and parents of a root device in memory
@@ -393,4 +393,3 @@
 	}
 	return childDeviceIds, nil
 }
-
diff --git a/ro_core/core/grpc_nbi_api_handler.go b/ro_core/core/grpc_nbi_api_handler.go
index 8338507..6d50e9e 100644
--- a/ro_core/core/grpc_nbi_api_handler.go
+++ b/ro_core/core/grpc_nbi_api_handler.go
@@ -266,7 +266,7 @@
 
 //@TODO useless stub, what should this actually do?
 func (handler *APIHandler) GetMeterStatsOfLogicalDevice(
-	ctx context.Context, 
+	ctx context.Context,
 	in *common.ID,
 ) (*openflow_13.MeterStatsReply, error) {
 	log.Debug("GetMeterStatsOfLogicalDevice-stub")
@@ -275,8 +275,8 @@
 
 //@TODO useless stub, what should this actually do?
 func (handler *APIHandler) GetMibDeviceData(
-	ctx context.Context, 
-	in *common.ID, 
+	ctx context.Context,
+	in *common.ID,
 ) (*omci.MibDeviceData, error) {
 	log.Debug("GetMibDeviceData-stub")
 	return nil, nil
@@ -299,4 +299,3 @@
 	log.Debug("UpdateLogicalDeviceMeterTable-stub")
 	return nil, nil
 }
-
diff --git a/ro_core/core/logical_device_manager.go b/ro_core/core/logical_device_manager.go
index 846df63..05b494a 100644
--- a/ro_core/core/logical_device_manager.go
+++ b/ro_core/core/logical_device_manager.go
@@ -219,5 +219,5 @@
 			return port, nil
 		}
 	}
-	return nil, status.Errorf(codes.NotFound, "%s-$s", lPortId.Id, lPortId.PortId)
+	return nil, status.Errorf(codes.NotFound, "%s-%s", lPortId.Id, lPortId.PortId)
 }
diff --git a/ro_core/core/model_proxy_manager.go b/ro_core/core/model_proxy_manager.go
index 6db4bef..e766b71 100644
--- a/ro_core/core/model_proxy_manager.go
+++ b/ro_core/core/model_proxy_manager.go
@@ -38,7 +38,7 @@
 )
 
 // String equivalent for data path agents
-var commonTypes = []string {
+var commonTypes = []string{
 	"Adapters",
 	"AlarmFilters",
 	"CoreInstances",