check if nothing selected, console=false

main.py

@@ -133,6 +133,8 @@ def read_configuration():
     if not os.path.exists(config_file):
         # create it
         giants_exe_path, _filename = QFileDialog.getOpenFileName(None, caption="Open Giants.exe", filter="Giants.exe")
+        if not giants_exe_path:
+            sys.exit(1)
         giants_dir = os.path.dirname(giants_exe_path)
         CONFIG = {"giants_directory": giants_dir, "automatic_download": True}
         save_configuration()

main.spec

@@ -33,7 +33,7 @@ exe = EXE(pyz,
           upx=True,
           upx_exclude=[],
           runtime_tmpdir=None,
-          console=True,
+          console=False,
           disable_windowed_traceback=False,
           target_arch=None,
           codesign_identity=None,