microsoft / microsoft/Analysis-Services
Write-Host ForegroundColor error on Linux: "-1 is not a valid color"
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- Dominant language
- C#
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Description
When running the PowerShell script on Linux using PowerShell (pwsh), the script throws the following error:
Write-Host: Cannot process the color because -1 is not a valid color. (Parameter 'value')
This happens because the script uses:
as the default value for -ForegroundColor in Write-Host.
In some Linux or non-interactive environments (for example CI/CD pipelines), System.Console::ForegroundColor returns -1, which is not a valid ConsoleColor value.
As a result, Write-Host fails when the script tries to use this value.
Can we add a condition to enforce a color in case ForegroundColor is not set.
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Research direction
Locate the PowerShell script and the Write-Host parameter that defaults to [System.Console]::ForegroundColor. Reproduce the issue in Linux or a non-interactive environment, then verify that a valid fallback color is used when the value is -1 and that Write-Host completes successfully.
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Assessment
- Tech stack
- powershell
- Domain
- cli
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100