diff --git a/mathweave-studio-onefile.spec b/mathweave-studio-onefile.spec
index 1658871..5f4e88f 100644
--- a/mathweave-studio-onefile.spec
+++ b/mathweave-studio-onefile.spec
@@ -1,5 +1,6 @@
 # -*- mode: python ; coding: utf-8 -*-
 
+import os
 from PyInstaller.utils.hooks import (
     collect_all,
     collect_data_files,
@@ -9,6 +10,11 @@ from PyInstaller.utils.hooks import (
 
 block_cipher = None
 
+# Base directory of the project, resolved from spec file location
+project_dir = SPECPATH
+assets_dir = os.path.join(project_dir, "assets")
+icon_path = os.path.join(assets_dir, "icon.ico")
+
 datas = []
 binaries = []
 hiddenimports = []
@@ -20,7 +26,7 @@ for pkg in ["nicegui", "plotly", "latex2mathml"]:
 
 # Application modules and assets
 hiddenimports += collect_submodules("math_app")
-datas += [("assets", "assets")]
+datas += [(assets_dir, "assets")]
 
 # Pywebview and webview backend
 datas += collect_data_files("webview")
@@ -59,8 +65,8 @@ hiddenimports += [
 ]
 
 a = Analysis(
-    ["run.py"],
-    pathex=["src"],
+    [os.path.join(project_dir, "run.py")],
+    pathex=[os.path.join(project_dir, "src")],
     binaries=binaries,
     datas=datas,
     hiddenimports=hiddenimports,
@@ -96,5 +102,5 @@ exe = EXE(
     target_arch=None,
     codesign_identity=None,
     entitlements_file=None,
-    icon="assets/icon.ico",
+    icon=icon_path,
 )
diff --git a/mathweave-studio.spec b/mathweave-studio.spec
index 0d25a6e..8078473 100644
--- a/mathweave-studio.spec
+++ b/mathweave-studio.spec
@@ -1,15 +1,20 @@
 # -*- mode: python ; coding: utf-8 -*-
 
+import os
 from PyInstaller.utils.hooks import (
     collect_all,
     collect_data_files,
     collect_dynamic_libs,
     collect_submodules,
 )
-from pathlib import Path
 
 block_cipher = None
 
+# Base directory of the project, resolved from spec file location
+project_dir = SPECPATH
+assets_dir = os.path.join(project_dir, "assets")
+icon_path = os.path.join(assets_dir, "icon.ico")
+
 datas = []
 binaries = []
 hiddenimports = []
@@ -19,7 +24,7 @@ for pkg in ["nicegui", "plotly", "latex2mathml"]:
     hiddenimports += collect_submodules(pkg)
 
 hiddenimports += collect_submodules("math_app")
-datas += [("assets", "assets")]
+datas += [(assets_dir, "assets")]
 
 datas += collect_data_files("webview")
 binaries += collect_dynamic_libs("webview")
@@ -53,8 +58,8 @@ hiddenimports += [
 ]
 
 a = Analysis(
-    ["run.py"],
-    pathex=["src"],
+    [os.path.join(project_dir, "run.py")],
+    pathex=[os.path.join(project_dir, "src")],
     binaries=binaries,
     datas=datas,
     hiddenimports=hiddenimports,
@@ -81,7 +86,7 @@ exe = EXE(
     strip=False,
     upx=True,
     console=False,
-    icon="assets/icon.ico",
+    icon=icon_path,
 )
 
 coll = COLLECT(
diff --git a/src/math_app/main.py b/src/math_app/main.py
index 87dc98c..efd1c61 100644
--- a/src/math_app/main.py
+++ b/src/math_app/main.py
@@ -207,7 +207,10 @@ def main() -> None:
                         "MathWeave Studio yêu cầu WebView2 Runtime để chạy ở chế độ cửa sổ ứng dụng desktop.\n\n"
                         "Vui lòng tải và cài đặt Microsoft Edge WebView2 Runtime từ:\n"
                         "https://go.microsoft.com/fwlink/p/?LinkId=2124703\n\n"
-                        "Hoặc khởi chạy ứng dụng từ dòng lệnh với tham số --browser để mở qua trình duyệt."
+                        "Hoặc khởi chạy ứng dụng từ dòng lệnh với tham số --browser để mở qua trình duyệt.\n"
+                        "--------------------------------------------------\n"
+                        "Microsoft Edge WebView2 Runtime is not installed on this system.\n"
+                        "Please install it from the link above or launch with --browser."
                     )
                     sys.stderr.write(f"\n[ERROR] {msg}\n\n")
                     sys.stderr.flush()
@@ -222,7 +225,7 @@ def main() -> None:
                     except Exception:
                         pass
                     sys.exit(1)
-            except ImportError:
+            except Exception:
                 pass
         elif sys.platform.startswith("linux"):
             app.native.start_args["gui"] = "qt"