How to pass variable in Classic ADO pipeline between two Powershell Scripts

Question

I have two tasks:

The 'Set Solution Name does this:

$SolutionName = "UnknownSolution"
Write-Host "::vso[task.setvariable variable=SolutionName;]$SolutionName"
Write-Host "Solution Name: $SolutionName"

Here is the output of this task:

::vso[task.setvariable variable=SolutionName;]UnknownSolution Solution Name: UnknownSolution

The 'Get Solution Name' does this:

$SolutionNameFromTask = "$(SolutionName)"
Write-Host "Solution Name: $SolutionNameFromTask"

Error from this task:

SolutionName : The term 'SolutionName' 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 D:\a_temp\8d389e74-a705-4c90-96cb-b36de82d0e87.ps1:5 char:28

$SolutionNameFromTask = "$(SolutionName)"
```
                       ~~~~~~~~~~~~
```
- CategoryInfo : ObjectNotFound: (SolutionName:String) [], ParentContainsErrorRecordException
- FullyQualifiedErrorId : CommandNotFoundException

The 'Get Solution Name' can't find the "$(SolutionName)" and throws an error. My 'Set Solution Name' must not be creating a variable that can be seen by subsequent tasks. Is this not possible?

B-Rad · Accepted Answer · 2025-11-02 16:15:13Z

0

Silly mistake. The issue is on this line:

Write-Host "::vso[task.setvariable variable=SolutionName;]$SolutionName"

Which should be:

Write-Host "##vso[task.setvariable variable=SolutionName;]$SolutionName"

Not sure why I was using colons...

answered Nov 2 at 16:15

B-Rad

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