Run tasks before build in Visual Studio

Question

I use Selenium with Chrome to do Web UI automation test.

chromedriver.exe is got from nuget repository. Need to replace with a local chromedriver.exe file sometimes for the version is unmatched with Chrome and I do this in [NUnit.Framework.SetUp].

Rebuild would restore chromedriver.exe from nuget repository. And, sometimes it would failed for chromedriver.exe is running (debug not ended properly last time). I try to kill chromedriver.exe before build by added

taskkill /im chromedriver.exe /f 2>nul

in pre-build event in visual studio. Seems like restore chromedriver.exe from nuget repository runs before pre-build event and I got below error:

17> Deleting file "C:\code\50\bin\Debug\chromedriver.exe". 17>C:\code\50\packages\Selenium.WebDriver.ChromeDriver.99.0.4844.5100\build\Selenium.WebDriver.ChromeDriver.targets(92,5): error MSB3061: Unable to delete file "C:\code\50\bin\Debug\chromedriver.exe". Access to the path 'C:\code\50\bin\Debug\chromedriver.exe' is denied.

Anyone knows that how to kill chromedriver.exe process before build and before nuget package restore?

Answer 1

Directory.Build.targets works

<Project>
  <Target Name="DriverCleanUp" BeforeTargets="CoreClean">
    <Exec Command="taskkill /im chromedriver.exe /f 2>nul" IgnoreExitCode="true"/>
  </Target>
</Project>