diff --git a/applications/rd_gen_to_dags/src/build_dag.rs b/applications/rd_gen_to_dags/src/build_dag.rs
index 3eb6e364..b6af74ca 100644
--- a/applications/rd_gen_to_dags/src/build_dag.rs
+++ b/applications/rd_gen_to_dags/src/build_dag.rs
@@ -119,11 +119,6 @@ async fn register_source_node(
 
     let out_links_num = node_data.get_out_links().len();
 
-    assert!(
-        out_links_num == 0,
-        "LinkNumError::NoInput: dag_id={dag_id}, node_id={node_id}"
-    );
-
     match out_links_num {
         1 => register_source!(dag, node_data, sched_type, u64),
         2 => register_source!(dag, node_data, sched_type, u64, u64),
@@ -174,11 +169,6 @@ async fn register_sink_node(
 
     let in_links_num = node_data.get_in_links().len();
 
-    assert!(
-        in_links_num == 0,
-        "LinkNumError::NoInput: dag_id={dag_id}, node_id={node_id}"
-    );
-
     match in_links_num {
         1 => register_sink!(dag, node_data, sched_type, u64),
         2 => register_sink!(dag, node_data, sched_type, u64, u64),
@@ -242,19 +232,6 @@ async fn register_intermediate_node(
     let in_links_num = node_data.get_in_links().len();
     let out_links_num = node_data.get_out_links().len();
 
-    assert!(
-        in_links_num > 0 && out_links_num > 0,
-        "LinkNumError::NoInOut: dag_id={dag_id}, node_id={node_id}"
-    );
-    assert!(
-        in_links_num == 0,
-        "LinkNumError::NoInput: dag_id={dag_id}, node_id={node_id}",
-    );
-    assert!(
-        out_links_num == 0,
-        "LinkNumError::NoOutput: dag_id={dag_id}, node_id={node_id}",
-    );
-
     match (in_links_num, out_links_num) {
         (1, 1) => register_intermediate!(dag, node_data, sched_type, u64; u64),
         (1, 2) => register_intermediate!(dag, node_data, sched_type, u64; u64, u64),
diff --git a/applications/rd_gen_to_dags/src/lib.rs b/applications/rd_gen_to_dags/src/lib.rs
index ab06cdd6..606c2016 100644
--- a/applications/rd_gen_to_dags/src/lib.rs
+++ b/applications/rd_gen_to_dags/src/lib.rs
@@ -48,6 +48,11 @@ pub async fn run() {
         }
     }
 
+    if success_build_dags.is_empty() {
+        log::error!("Failed to build DAG");
+        return;
+    }
+
     match finish_create_dags(&success_build_dags).await {
         Ok(_) => {
             log::info!("DAGs created successfully.");