diff --git a/src/main.rs b/src/main.rs
index c07cca1..3a7e697 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -927,11 +927,9 @@ async fn write_commit(config:WriteCommitConfig,b:Result<AResult<(AssetVersion,De
 	let tree_id={
 		let mut tree_index = repo.index()?;
 		tree_index.add_all([config.output_folder.as_path()].iter(),git2::IndexAddOption::DEFAULT,None)?;
-		if tree_index.len()==0{
-			println!("tree_index.len()==0");
-			return Ok(());
-		}else{
-			tree_index.update_all([config.output_folder.as_path()].iter(),None)?;
+		match tree_index.update_all([config.output_folder.as_path()].iter(),None){
+			Ok(_)=>(),
+			Err(e)=>println!("tree_index.update_all error: {}",e),
 		}
 		tree_index.write()?;
 		tree_index.write_tree()?