maybe this was it

Author: GeneralKaos666

build.py

@@ -176,7 +176,6 @@ def configure(
             '--gn-args', 'dart_platform_sdk=false',
             '--gn-args', 'is_desktop_linux=false',
             '--gn-args', 'use_default_linux_sysroot=false',
-            '--gn-args', 'dart_support_perfetto=false',
             '--gn-args', 'skia_use_perfetto=false',
             '--gn-args', f'custom_sysroot="{sysroot}"',
             '--gn-args', 'is_termux=true',

test_build.py

@@ -45,6 +45,7 @@ def test_configure_uses_configured_api_and_termux_stub_includes(self, run):
 
         self.assertIn('termux_api_level=29', gn_args)
         self.assertIn('extra_ldflags=["-lEGL", "-lGLESv2", "-llog"]', gn_args)
+        self.assertNotIn('dart_support_perfetto=false', gn_args)
         self.assertIn(
             f'extra_cflags=["{vulkan}", "-I{stubs}", "-D__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__"]',
             gn_args,