From 8b77d98e392523b291318010a427db1d1b926d80 Mon Sep 17 00:00:00 2001
From: Stepan Koltsov <stepan.koltsov@gmail.com>
Date: Mon, 8 Jan 2024 07:42:20 +0000
Subject: [PATCH] Better error message on incorrect asset label

---
 crates/bevy_asset/src/server/mod.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/crates/bevy_asset/src/server/mod.rs b/crates/bevy_asset/src/server/mod.rs
index 51d5cc2dc2604..ffa192f0cd833 100644
--- a/crates/bevy_asset/src/server/mod.rs
+++ b/crates/bevy_asset/src/server/mod.rs
@@ -487,9 +487,16 @@ impl AssetServer {
                     match loaded_asset.labeled_assets.get(&label) {
                         Some(labeled_asset) => labeled_asset.handle.clone(),
                         None => {
+                            let mut all_labels: Vec<String> = loaded_asset
+                                .labeled_assets
+                                .keys()
+                                .map(|s| (**s).to_owned())
+                                .collect();
+                            all_labels.sort_unstable();
                             return Err(AssetLoadError::MissingLabel {
                                 base_path,
                                 label: label.to_string(),
+                                all_labels,
                             });
                         }
                     }
@@ -1138,10 +1145,15 @@ pub enum AssetLoadError {
         loader_name: &'static str,
         error: Box<dyn std::error::Error + Send + Sync + 'static>,
     },
-    #[error("The file at '{base_path}' does not contain the labeled asset '{label}'.")]
+    #[error("The file at '{}' does not contain the labeled asset '{}'; it contains the following {} assets: {}",
+            base_path,
+            label,
+            all_labels.len(),
+            all_labels.iter().map(|l| format!("'{}'", l)).collect::<Vec<_>>().join(", "))]
     MissingLabel {
         base_path: AssetPath<'static>,
         label: String,
+        all_labels: Vec<String>,
     },
 }