Compilation fix

crates/re_sdk/src/msg_sender.rs

@@ -38,8 +38,16 @@ pub enum FromFileError {
     #[error(transparent)]
     MsgSender(#[from] MsgSenderError),
 
+    #[cfg(feature = "image")]
     #[error(transparent)]
     TensorImageLoad(#[from] re_log_types::component_types::TensorImageLoadError),
+
+    #[cfg(not(target_arch = "wasm32"))]
+    #[error("Unsupported file extension '{extension}' for file {path:?}. To load image files, make sure you compile with the 'image' feature")]
+    UnknownExtension {
+        extension: String,
+        path: std::path::PathBuf,
+    },
 }
 
 /// Facilitates building and sending component payloads with the Rerun SDK.
@@ -158,12 +166,19 @@ impl MsgSender {
             "glft" => load_mesh(ent_path, crate::components::MeshFormat::Gltf),
             "obj" => load_mesh(ent_path, crate::components::MeshFormat::Obj),
 
-            // Assume and image (there are so many image extensions)
+            #[cfg(feature = "image")]
             _ => {
+                // Assume and image (there are so many image extensions):
                 let tensor = re_log_types::component_types::Tensor::from_image_file(file_path)?;
                 let msg_sender = Self::new(ent_path).with_component(&[tensor])?;
                 Ok(msg_sender)
             }
+
+            #[cfg(not(feature = "image"))]
+            _ => Err(FromFileError::UnknownExtension {
+                extension,
+                path: file_path.to_owned(),
+            }),
         }
     }