title: Visual Studio 2017 Does Not Load Debug Symbols When Remote Debugging a .Net Core Console App from a Docker Windows Container
body: <p>Cannot step through code when remotely debugging a .net core console app hosted on a windows docker container. Getting error "Cannot find or open the PDB file" even though the PDB is present with the DLL.</p>
  
  <p>Dockerfile</p>
  
  <pre><code>FROM microsoft/windowsservercore
  
  WORKDIR /
  
  COPY ./tools ./
  
  RUN dotnet-dev-win-x64.1.0.4.exe /install /quiet
  RUN vs_remotetools.exe /install /quiet
  
  EXPOSE 4022
  
  COPY ./Clients/Client.Web.Identity.Client.MVC ./Clients/Client.Web.Identity.Client.MVC
  
  WORKDIR ./Clients/Client.Web.Identity.Client.MVC
  RUN dotnet restore Client.MVC.csproj
  RUN dotnet build Client.MVC.csproj
  CMD dotnet run http://*60720
  </code></pre>
  
  <p>Visual Studio Debug Output
  <a href="https://pastebin.com/D77JCtr9" rel="nofollow noreferrer">https://pastebin.com/D77JCtr9</a></p>
  
  <p>Note the second line:</p>
  
  <pre><code>'dotnet.exe' (CoreCLR: clrhost): Loaded 'C:\Clients\Client.Web.Identity.Client.MVC\bin\Debug\netcoreapp1.1\Client.Web.Identity.Client.Mvc.dll'. Cannot find or open the PDB file.
  </code></pre>
  
  <p>Container output showing MSVSMON running with Client.Web.Identity.Client.Mvc.pdb present in the dll path.</p>
  
  <pre><code>PS C:\clients\Client.Web.Identity.Client.MVC\bin\debug\netcoreapp1.1&gt; hostname
  1aaaef767980
  PS C:\clients\Client.Web.Identity.Client.MVC\bin\debug\netcoreapp1.1&gt; dir
  
  
      Directory: C:\clients\Client.Web.Identity.Client.MVC\bin\debug\netcoreapp1.1
  
  
  Mode                LastWriteTime         Length Name
  ----                -------------         ------ ----
  -a----        7/20/2017  11:45 AM         561664 IdentityServer4.dll
  -a----        7/20/2017  11:45 AM         160224 IdentityServer4.pdb
  -a----        7/20/2017  11:45 AM         385545 IdentityServer4.xml
  -a----        7/20/2017  11:45 AM         239282 Client.Web.Identity.Client.Mvc.deps.json
  -a----        7/20/2017  11:45 AM          31744 Client.Web.Identity.Client.Mvc.dll
  -a----        7/20/2017  11:45 AM           5544 Client.Web.Identity.Client.Mvc.pdb
  -a----        7/20/2017  11:47 AM            133 Client.Web.Identity.Client.Mvc.runtimeconfig.dev.json
  -a----        7/20/2017  11:47 AM            192 Client.Web.Identity.Client.Mvc.runtimeconfig.json
  -a----        7/20/2017  11:45 AM          13312 Client.Web.Identity.Common.dll
  -a----        7/20/2017  11:45 AM           3812 Client.Web.Identity.Common.pdb
  
  PS C:\clients\Client.Web.Identity.Client.MVC\bin\debug\netcoreapp1.1&gt; get-process
  
  Handles  NPM(K)    PM(K)      WS(K)     CPU(s)     Id  SI ProcessName
  -------  ------    -----      -----     ------     --  -- -----------
       90       5      968       4612       0.77   1600   1 CExecSvc
       42       3     1556       2752       0.05   1880   1 cmd
      209      11     1868       4412       1.36     68   1 csrss
      476     340    50400      40372       1.84    876   1 dotnet
      475      44    27516      47552       1.67   2044   1 dotnet
        0       0        0          4                 0   0 Idle
      735      20     4388      12764       1.91    644   1 lsass
      188      12     2276       9200       0.31    376   1 msdtc
      174      12     1948       8748       0.56   1100   1 msvsmon
      690      33    16612      39668       7.36   2160   1 msvsmon
      113       9     1360       6964       0.06   2484   1 msvsmon
      128      10     1320       6724       0.05   2604   1 msvsmon
     1227      50   102760     119608      14.39   1420   1 powershell
      178       8     1840       5796       1.36    536   1 services
       48       2      344       1156       8.45    988   0 smss
      352      14    17816      25500       7.19   2316   1 StandardCollector.Service
      283      12     2384       9084       0.75   1052   1 svchost
      253      13     2000       6876       0.84   1088   1 svchost
      271      13     2508      10460       0.72   1196   1 svchost
      288      14     5164      10636       2.50   1212   1 svchost
      849      32    10992      29032       8.89   1256   1 svchost
      188      16     3124      10104       0.88   1268   1 svchost
      390      31     5540      15760       1.97   1388   1 svchost
       89       6     1044       5344       0.13   1500   1 svchost
      354      18     4676      14180       1.83   1512   1 svchost
     3352       0      128        136      46.97      4   0 System
       91       8      908       5156       0.45    316   1 wininit
  </code></pre>