velopack/docs/using/debugging-updates.md

| [docs](..)  / [using](.) / debugging-updates.md
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# Debugging Updates

The following tips will help you to debug the update process in your application.

## Update.exe not found?

Executing MyApp from Visual Studio will execute the update process and you will get the following exception from the `UpdateManager`:

~~~
Update.exe not found, not a Squirrel-installed app?
~~~

The `UpdateManager` is expecting to find the `Update.exe` application installed one directory up from the EXE (e.g., the `\bin` directory for default Visual Studio projects). 

To resolve this, you can simply place a file named `Update.exe` or you can copy the `Squirrel.exe` from the `MyApp\packages\squirrel.windows.1.2.2.tools` directory and rename it Update.exe (this is the actual Update.exe packaged inside `Setup.exe`). 

Executing MyApp from Visual Studio will now cause it to complete the update process and your `\bin` directory will resemble the `%LocalAppData\MyApp%` install directory:

![](images/debugging-update-dir.png)

## Catching Update Exceptions

You can catch thrown exceptions and log the results. 

~~~cs
Task.Run(async () =>
{
    try
    {
        using (var mgr = new UpdateManager("C:\\Projects\\MyApp\\Releases"))
        {
            await mgr.UpdateApp();
        }
    }
    catch (Exception ex)
    {
    	 // perform logging here or inform user here...
    }
});
~~~

Alternatively, set up Splat Logging, see [here](https://github.com/Squirrel/Squirrel.Windows.Next/blob/6d7ae23602a3d9a7636265403d42c1090260e6dc/src/Update/Program.cs#L53) for an example.


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