diff --git a/src/rime/lever/deployment_tasks.cc b/src/rime/lever/deployment_tasks.cc
index be502214d3..ff615cc166 100644
--- a/src/rime/lever/deployment_tasks.cc
+++ b/src/rime/lever/deployment_tasks.cc
@@ -187,7 +187,7 @@ bool WorkspaceUpdate::Run(Deployer* deployer) {
   the<ResourceResolver> resolver(
       Service::instance().CreateResourceResolver(
           {"schema", "", ".schema.yaml"}));
-  auto build_schema = [&](const string& schema_id) {
+  auto build_schema = [&](const string& schema_id, bool as_dependency = false) {
     if (schemas.find(schema_id) != schemas.end())  // already built
       return;
     LOG(INFO) << "schema: " << schema_id;
@@ -199,8 +199,13 @@ bool WorkspaceUpdate::Run(Deployer* deployer) {
     else {
       schema_path = schemas[schema_id];
     }
-    if (schema_path.empty()) {
-      LOG(WARNING) << "missing schema file for '" << schema_id << "'.";
+    if (schema_path.empty() || !fs::exists(schema_path)) {
+      if (as_dependency) {
+        LOG(WARNING) << "missing input schema; skipped unsatisfied dependency: " << schema_id;
+      } else {
+        LOG(ERROR) << "missing input schema: " << schema_id;
+        ++failure;
+      }
       return;
     }
     the<DeploymentTask> t(new SchemaUpdate(schema_path));
@@ -228,7 +233,8 @@ bool WorkspaceUpdate::Run(Deployer* deployer) {
         if (!dependency)
           continue;
         const string& dependency_id = dependency->str();
-        build_schema(dependency_id);
+        bool as_dependency = true;
+        build_schema(dependency_id, as_dependency);
       }
     }
   }