From 7fe3fd1d11a66de9dbfbc479bd91cd0cb7d35013 Mon Sep 17 00:00:00 2001
From: iLLiCiTiT <jakub.trllo@gmail.com>
Date: Tue, 21 Sep 2021 14:06:25 +0200
Subject: [PATCH] show tkinter message box if validation crashes

---
 start.py | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/start.py b/start.py
index a02c06661f..8b4ee97b09 100644
--- a/start.py
+++ b/start.py
@@ -359,7 +359,23 @@ def is_tool(name):
 
 def _startup_validations():
     """Validations before OpenPype starts."""
-    _validate_thirdparty_binaries()
+    try:
+        _validate_thirdparty_binaries()
+    except Exception as exc:
+        if os.environ.get("OPENPYPE_HEADLESS_MODE"):
+            raise
+
+        from tkinter import Tk
+        from tkinter.messagebox import showerror
+
+        root = Tk()
+        root.withdraw()
+        showerror(
+            "Startup validations didn't pass",
+            str(exc)
+        )
+        root.destroy()
+        sys.exit(1)
 
 
 def _validate_thirdparty_binaries():