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Install-Module reports all modules from PSGallery as unsigned. #80
Description
Prerequisites
- Write a descriptive title.
- Make sure you are able to repro it on the latest released version
- Search the existing issues.
Steps to reproduce
When running install-module (as imported from PowerShellGet 3.023), Install-PSResource returns an error stating that the target module is unsigned.
Install-PSResource: The signature status for 'Microsoft.Graph' file 'Microsoft.Graph.psd1' is 'NotSigned'.
Expected behavior
`Install-Module` which is supposed to be a compatibility mode wrapper for `Install-PSResource` should successfully install modules.Actual behavior
> Install-Module Microsoft.Graph -RequiredVersion 2.30.0 -Repository PSGallery
Untrusted repository
You are installing the modules from an untrusted repository. If you trust this repository, change its Trusted value by
running the Set-PSResourceRepository cmdlet. Are you sure you want to install the PSResource from 'PSGallery'?
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "N"): y
Install-PSResource: The signature status for 'Microsoft.Graph' file 'Microsoft.Graph.psd1' is 'NotSigned'. Status message: 'The file C:\Users\jole001\AppData\Local\Temp\22cbf8bd-a310-45e1-9f42-bb1b4216fad0\microsoft.graph\2.30.0\Microsoft.Graph.psd1 is not digitally signed. You cannot run this script on the current system. For more information about running scripts and setting execution policy, see about_Execution_Policies at https://go.microsoft.com/fwlink/?LinkID=135170'
Install-PSResource: Package(s) 'Microsoft.Graph' could not be installed from repository 'PSGallery'.Error details
Exception :
Type : Microsoft.PowerShell.PSResourceGet.UtilClasses.ResourceNotFoundException
Message : Package(s) 'Microsoft.Graph' could not be installed from repository 'PSGallery'.
HResult : -2146233088
TargetObject : Microsoft.PowerShell.PSResourceGet.Cmdlets.InstallPSResource
CategoryInfo : InvalidData: (Microsoft.PowerShel…s.InstallPSResource:InstallPSResource) [Install-PSResource],
ResourceNotFoundException
FullyQualifiedErrorId : InstallPackageFailure,Microsoft.PowerShell.PSResourceGet.Cmdlets.InstallPSResource
InvocationInfo :
MyCommand : Install-PSResource
ScriptLineNumber : 1
OffsetInLine : 1
HistoryId : 6
Line : Install-Module Microsoft.Graph -RequiredVersion 2.30.0 -Repository PSGallery
Statement : Install-Module Microsoft.Graph -RequiredVersion 2.30.0 -Repository PSGallery
PositionMessage : At line:1 char:1
+ Install-Module Microsoft.Graph -RequiredVersion 2.30.0 -Repository PS …
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
InvocationName : Install-Module
CommandOrigin : Internal
ScriptStackTrace : at Install-Module<Process>, C:\Users\jole001\OneDrive - Hennepin
County\Documents\PowerShell\Modules\PowerShellGet\3.0.23\PowerShellGet.psm1: line 1158
at <ScriptBlock>, <No file>: line 1
PipelineIterationInfo :
0
1Environment data
PS> get-module Microsoft.PowerShell.PSResourceGet; $PSVersionTable | Format-Table
ModuleType Version PreRelease Name ExportedCommands
---------- ------- ---------- ---- ----------------
Binary 1.1.1 Microsoft.PowerShell.PSResourceGet {Compress-PSResource, Find-PSResource, Get-InstalledP…
Name Value
---- -----
PSVersion 7.5.2
PSEdition Core
GitCommitId 7.5.2
OS Microsoft Windows 10.0.22631
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0Visuals
Using Install-PSResource directly works normally, even in the same session.
Activity
o-l-a-v commentedon Sep 20, 2025
Edit: Seems like there is an issue for this already: #48.
From the error message it seems like you are using PowerShellGet v3.0.23-beta23 (there is no stable version of this release AFAIK):
This is a shim or proxy for PSResourceGet. More reading:
The last link is where you should create an issue for this.
Having said that, it looks like that project isn't highly prioritized. There has never been a stable v3 release of it. Don't expect a swift solution.
alerickson commentedon Aug 18, 2026
'Microsoft.Graph' is not signed: https://www.powershellgallery.com/packages/Microsoft.Graph/2.39.0/Content/Microsoft.Graph.psd1. It ships with a certificate but the files themselves are not signed, nor is the .nupkg itself. We can check with the team to see why they are not signing the package, but this is not a bug with PowerShellGet or PSResourceGet