title: Debug with Attach to dotnet core process on Mac always lead to the error: Unknown Error: 0x80070459
body: <p>I used to be able to attach to the dotnet core (<strong>dotnet 2.2</strong>) process on my <strong>Mac Mojave</strong>. But it seems that after the installation of dotnet 3.0, it always fail to attach to the dotnet process with the following error: <code>Unknown Error: 0x80070459</code>.</p>
  
  <p>I have been googling this issue for a month but haven't found a solution to this problem.</p>
  
  <p>It seems to be relevant to my system issue. It would be really appreciated if anyone has a solution to this issue. Thanks.</p>