diff --git a/src/checkoutservice/main.go b/src/checkoutservice/main.go
index e1b3f1c..9099550 100644
--- a/src/checkoutservice/main.go
+++ b/src/checkoutservice/main.go
@@ -43,9 +43,9 @@ func main() {
 		// ProjectID must be set if not running on GCP.
 		// ProjectID: "my-project",
 	}); err != nil {
-			// TODO: Handle error.
+		log.Fatalf("failed to start profiler: %+v", err)
 	}
-	
+
 	port := listenPort
 	if os.Getenv("PORT") != "" {
 		port = os.Getenv("PORT")
diff --git a/src/frontend/main.go b/src/frontend/main.go
index d5e7c53..f4794e9 100644
--- a/src/frontend/main.go
+++ b/src/frontend/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"context"
 	"fmt"
+	"log"
 	"net/http"
 	"os"
 	"time"
@@ -62,14 +63,13 @@ type frontendServer struct {
 }
 
 func main() {
-	// Profiler initialization, best done as early as possible.
 	if err := profiler.Start(profiler.Config{
 		Service:        "frontendservice",
 		ServiceVersion: "1.0.0",
 		// ProjectID must be set if not running on GCP.
 		// ProjectID: "my-project",
 	}); err != nil {
-		// TODO: Handle error.
+		log.Fatalf("failed to start profiler: %+v", err)
 	}
 
 	ctx := context.Background()
diff --git a/src/productcatalogservice/server.go b/src/productcatalogservice/server.go
index b1b1bfa..3265b9b 100644
--- a/src/productcatalogservice/server.go
+++ b/src/productcatalogservice/server.go
@@ -94,7 +94,7 @@ func main() {
 		// ProjectID must be set if not running on GCP.
 		// ProjectID: "my-project",
 	}); err != nil {
-		// TODO: Handle error.
+		log.Fatalf("failed to start profiler: %+v", err)
 	}
 
 	flag.Parse()
diff --git a/src/recommendationservice/recommendation_server.py b/src/recommendationservice/recommendation_server.py
index 3405695..ed61764 100644
--- a/src/recommendationservice/recommendation_server.py
+++ b/src/recommendationservice/recommendation_server.py
@@ -42,7 +42,7 @@ if __name__ == "__main__":
     try:
         googleclouddebugger.enable(
             module='recommendationserver',
-            version='[VERSION]'
+            version='1.0.0'
         )
     except:
         pass
@@ -70,4 +70,4 @@ if __name__ == "__main__":
          while True:
             time.sleep(10000)
     except KeyboardInterrupt:
-            server.stop(0)
\ No newline at end of file
+            server.stop(0)
diff --git a/src/shippingservice/main.go b/src/shippingservice/main.go
index 2b77d97..7a87c73 100644
--- a/src/shippingservice/main.go
+++ b/src/shippingservice/main.go
@@ -29,14 +29,13 @@ func main() {
 	}
 	port = fmt.Sprintf(":%s", port)
 
-	// Profiler initialization, best done as early as possible.
 	if err := profiler.Start(profiler.Config{
 		Service:        "shippingservice",
 		ServiceVersion: "1.0.0",
 		// ProjectID must be set if not running on GCP.
 		// ProjectID: "my-project",
 	}); err != nil {
-		// TODO: Handle error.
+		log.Fatalf("failed to start profiler: %+v", err)
 	}
 
 	go initTracing()