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Verify that you use Start Debugging rather than Attach to Process If these options are selected, then go to Live Visual Tree ( Debug > Windows > Live Visual Tree) and make sure that Show runtime tools in application toolbar button (on the far left) is selected. Make sure that both options, Enable UI Debugging Tools for XAML and Enable XAML Hot Reload are selected. If you do not see the in-app toolbar, then open Debug > Options > General.

When you start debugging your app, make sure you see the in-app toolbar, which confirms that XAML Hot Reload is available: If you see the message 'Hot Reload is not available' in the in-app toolbar while debugging your app, follow the instructions described in this article to resolve the issue. For details on operating system and tooling requirements, see Write and debug running XAML code with XAML Hot Reload. XAML Hot Reload is supported for WPF and UWP apps. This troubleshooting guide includes detailed instructions that should resolve most issues that prevent XAML Hot Reload from working correctly.

Refresh button doesn't work on dolphin emulator mac