diff --git a/scripts/build-portal-runtime.mjs b/scripts/build-portal-runtime.mjs
index 0ea8ddb..d7cfa86 100755
--- a/scripts/build-portal-runtime.mjs
+++ b/scripts/build-portal-runtime.mjs
@@ -65,7 +65,13 @@ async function exists(targetPath) {
 }
 
 async function remove(targetPath) {
-  await fs.rm(targetPath, { recursive: true, force: true });
+  if (!(await exists(targetPath))) return;
+  try {
+    await fs.rm(targetPath, { recursive: true, force: true, maxRetries: 3, retryDelay: 100 });
+  } catch (error) {
+    if (error?.code !== 'ENOTEMPTY' && error?.code !== 'EBUSY') throw error;
+    await run('rm', ['-rf', targetPath]);
+  }
 }
 
 async function copyDir(source, target) {