Azure-devops-docs: Facing issue in windows docker agent start.ps1 file.

[ashutoshbarve]

1. Determining matching Azure Pipelines agent...
   Invoke-RestMethod : An error occurred while sending the request.
   At C:\azp\start.ps1:32 char:12
2. $package = Invoke-RestMethod -Headers @{Authorization=("Basic $base64 ...
3. ~~~~~~~~~~~~~~
   
   
   
   • CategoryInfo : InvalidOperation: (Method: GET, Re...1.14393.100
     
     0
     
     }:HttpRequestMessage) [Invoke-RestMethod], HttpRequestException
   
   
   • FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShe
     
     ll.Commands.InvokeRestMethodCommand
   
   

Cannot index into a null array.
At C:\azp\start.ps1:33 char:1

• $packageUrl = $package[0].Value.downloadUrl
• ~~~~~~~~~~~
  
  
  
  • CategoryInfo : InvalidOperation: (:) [], RuntimeException
  
  
  • FullyQualifiedErrorId : NullArray
  
  

1. Downloading and installing Azure Pipelines agent...
   New-Object : Cannot find type [System.Net.WebClient]: verify that the assembly
   containing this type is loaded.
   At C:\azp\start.ps1:39 char:7
2. $wc = New-Object System.Net.WebClient
3. ~~~~~~~
   
   
   
   • CategoryInfo : InvalidType: (:) [New-Object], PSArgumentExcepti
     
     on
   
   
   • FullyQualifiedErrorId : TypeNotFound,Microsoft.PowerShell.Commands.NewOb
     
     jectCommand
   
   

You cannot call a method on a null-valued expression.
At C:\azp\start.ps1:40 char:34

• $wc.DownloadFile($packageUrl, "$(Get-Location)\agent.zip")
• ~~~~
  
  
  
  • CategoryInfo : InvalidOperation: (:) [], RuntimeException
  
  
  • FullyQualifiedErrorId : InvokeMethodOnNull
  
  

Expand-Archive : The path 'agent.zip' either does not exist or is not a valid
file system path.
At C:\azp\start.ps1:42 char:1

• Expand-Archive -Path "agent.zip" -DestinationPath "\azp\agent"
• ~~~~~~~~~~~~~~
  
  
  
  • CategoryInfo : InvalidArgument: (agent.zip:String) [Expand-Arch
    
    ive], InvalidOperationException
  
  
  • FullyQualifiedErrorId : ArchiveCmdletPathNotFound,Expand-Archive
  
  

1. Configuring Azure Pipelines agent...
   Cleanup. Removing Azure Pipelines agent...
   .\config.cmd : The term '.\config.cmd' is not recognized as the name of a
   cmdlet, function, script file, or operable program. Check the spelling of the
   name, or if a path was included, verify that the path is correct and try again.
   At C:\azp\start.ps1:68 char:3
2. .\config.cmd remove --unattended `
3. ~~~~
   
   
   
   • CategoryInfo : ObjectNotFound: (.\config.cmd:String) [], Comman
     
     dNotFoundException
   
   
   • FullyQualifiedErrorId : CommandNotFoundException
   
   

.\config.cmd : The term '.\config.cmd' is not recognized as the name of a
cmdlet, function, script file, or operable program. Check the spelling of the
name, or if a path was included, verify that the path is correct and try again.
At C:\azp\start.ps1:48 char:3

• .\config.cmd --unattended `
• ~~~~
  
  
  
  • CategoryInfo : ObjectNotFound: (.\config.cmd:String) [], Comman
    
    dNotFoundException
  
  
  • FullyQualifiedErrorId : CommandNotFoundException
  
  

---

Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: b31d4f6c-d16d-2ba1-1294-6aa94e328046
• Version Independent ID: 88aec599-4410-697d-1002-1c41b1c17bb6
• Content: Running a self-hosted agent in Docker - Azure Pipelines
• Content Source: docs/pipelines/agents/docker.md
• Product: devops
• Technology: devops-cicd-agents
• GitHub Login: @steved0x
• Microsoft Alias: sdanie

[atedsimple]

You need to enable TLS 1.2 by adding the following line to the top of your Start.ps1 script

[ashutoshbarve]

@atedsimple I have enabled TLS 1.2 as u have asked, now it is throwing different error.

1. Determining matching Azure Pipelines agent...
   https://vstsagentpackage.azureedge.net/agent/2.168.2/vsts-agent-win-x64-2.168.2.zip
2. Downloading and installing Azure Pipelines agent...
   New-Object : Cannot find type [System.Net.WebClient]: verify that the assembly
   containing this type is loaded.
   At C:\azp\start.ps1:39 char:7
3. $wc = New-Object System.Net.WebClient
4. ~~~~~~~
   
   
   
   • CategoryInfo : InvalidType: (:) [New-Object], PSArgumentExcepti
     
     on
   
   
   • FullyQualifiedErrorId : TypeNotFound,Microsoft.PowerShell.Commands.NewOb
     
     jectCommand
   
   

You cannot call a method on a null-valued expression.
At C:\azp\start.ps1:40 char:34

• $wc.DownloadFile($packageUrl, "$(Get-Location)\agent.zip")
• ~~~~
  
  
  
  • CategoryInfo : InvalidOperation: (:) [], RuntimeException
  
  
  • FullyQualifiedErrorId : InvokeMethodOnNull
  
  

Expand-Archive : The path 'agent.zip' either does not exist or is not a valid
file system path.
At C:\azp\start.ps1:42 char:1

• Expand-Archive -Path "agent.zip" -DestinationPath "\azp\agent"
• ~~~~~~~~~~~~~~
  
  
  
  • CategoryInfo : InvalidArgument: (agent.zip:String) [Expand-Arch
    
    ive], InvalidOperationException
  
  
  • FullyQualifiedErrorId : ArchiveCmdletPathNotFound,Expand-Archive
  
  

1. Configuring Azure Pipelines agent...
   Cleanup. Removing Azure Pipelines agent...
   .\config.cmd : The term '.\config.cmd' is not recognized as the name of a
   cmdlet, function, script file, or operable program. Check the spelling of the
   name, or if a path was included, verify that the path is correct and try again.
   At C:\azp\start.ps1:68 char:3
2. .\config.cmd remove --unattended `
3. ~~~~
   
   
   
   • CategoryInfo : ObjectNotFound: (.\config.cmd:String) [], Comman
     
     dNotFoundException
   
   
   • FullyQualifiedErrorId : CommandNotFoundException
   
   

.\config.cmd : The term '.\config.cmd' is not recognized as the name of a
cmdlet, function, script file, or operable program. Check the spelling of the
name, or if a path was included, verify that the path is correct and try again.
At C:\azp\start.ps1:48 char:3

• .\config.cmd --unattended `
• ~~~~
  
  
  
  • CategoryInfo : ObjectNotFound: (.\config.cmd:String) [], Comman
    
    dNotFoundException
  
  
  • FullyQualifiedErrorId : CommandNotFoundException
  
  

[atedsimple]

Seems like you don't have the correct versions of Framework in your base docker image
Have a look at what we use to build the Docker Image for both 2016 and 2019 server
https://docs.modalitysoftware.com/vsts-agent/customise.html

[ashutoshbarve]

@atedsimple thanks.

[msebolt]

@ashutoshbarve Thank you for the question.

@atedsimple Thank you for providing a solution, consider becoming a contributor.

For further issues, please provide a reference to the specific documentation example and we will assign an author for review.

To receive general support, refer to the Azure DevOps support page.

[msebolt]

Closing this issue now.