502

dockerfile

@@ -6,7 +6,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 # System deps
 RUN apt-get update && apt-get install -y --no-install-recommends \
     python3.12 python3.12-venv python3.12-dev python3-pip python-is-python3 \
-    git wget curl unzip patch ca-certificates nano less \
+    git wget curl unzip patch ninja-build ca-certificates nano less \
  && rm -rf /var/lib/apt/lists/* \
  && mkdir -p /data
 

trainer_server.py

@@ -2012,6 +2012,12 @@ def _run_firmware_build_flash_background(session_id: str):
                     "Tip: PlatformIO's ESP-IDF Python environment crashed while installing dependencies. "
                     "Run Clean Build Files once, then retry the flash.",
                 )
+            if "pioarduino/registry" in joined_lines and "ninja-" in joined_lines and "status code '502'" in joined_lines:
+                _append_firmware_log(
+                    session_id,
+                    "Tip: GitHub returned a 502 while PlatformIO was downloading Ninja. "
+                    "This is an upstream package download failure; retry the build in a few minutes.",
+                )
             _append_firmware_log(session_id, f"✗ Firmware build + flash failed (exit_code={rc})")
         with FIRMWARE_LOCK:
             live = FIRMWARE_SESSIONS.get(session_id)