Various issues were discovered after upgrading to 7.5.0

[nczsl]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues.
• Refer to the FAQ.
• Refer to Differences between Windows PowerShell 5.1 and PowerShell.

Steps to reproduce

PowerShell 7.5.0

These questions are very strange. Changing a character or something in some unrelated places will result in an error. It was fine before

Such as questions like this：

9 | [PackageItem]$test = [PackageItem]::new()
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Cannot convert the "PackageItem" value of type "PackageItem" to type "PackageItem".
InvalidOperation: E:\netenv\tool\ias\test.ps1:11:1
Line |
11 | $test.Index = 1
| ~~~~~~~~~~~~~~~
| The property 'Index' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:12:1
Line |
12 | $test.Path = "C:\Users\user\Documents\GitHub\dfw\tool\ias\script\psx\ …
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| The property 'Path' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:14:1
Line |
14 | $test.Show()
| ~~~~~~~~~~~~
| You cannot call a method on a null-valued expression.
MetadataError: E:\netenv\tool\ias\test.ps1:16:1
Line |
16 | [Package]$pkg = [Package]::new()
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Cannot convert the "Package" value of type "Package" to type "Package".
InvalidOperation: E:\netenv\tool\ias\test.ps1:18:1
Line |
18 | $pkg.Name = "test"
| ~~~~~~~~~~~~~~~~~~
| The property 'Name' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:21:1
Line |
21 | $pkg.Show()
| ~~~~~~~~~~~
| You cannot call a method on a null-valued expression.

Expected behavior

9 |  [PackageItem]$test = [PackageItem]::new()
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | Cannot convert the "PackageItem" value of type "PackageItem" to type "PackageItem".
InvalidOperation: E:\netenv\tool\ias\test.ps1:11:1
Line |
  11 |  $test.Index = 1
     |  ~~~~~~~~~~~~~~~
     | The property 'Index' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:12:1
Line |
  12 |  $test.Path = "C:\Users\user\Documents\GitHub\dfw\tool\ias\script\psx\ …
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | The property 'Path' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:14:1
Line |
  14 |  $test.Show()
     |  ~~~~~~~~~~~~
     | You cannot call a method on a null-valued expression.
MetadataError: E:\netenv\tool\ias\test.ps1:16:1
Line |
  16 |  [Package]$pkg = [Package]::new()
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | Cannot convert the "Package" value of type "Package" to type "Package".
InvalidOperation: E:\netenv\tool\ias\test.ps1:18:1
Line |
  18 |  $pkg.Name = "test"
     |  ~~~~~~~~~~~~~~~~~~
     | The property 'Name' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:21:1
Line |
  21 |  $pkg.Show()
     |  ~~~~~~~~~~~
     | You cannot call a method on a null-valued expression.

Actual behavior

9 |  [PackageItem]$test = [PackageItem]::new()
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | Cannot convert the "PackageItem" value of type "PackageItem" to type "PackageItem".
InvalidOperation: E:\netenv\tool\ias\test.ps1:11:1
Line |
  11 |  $test.Index = 1
     |  ~~~~~~~~~~~~~~~
     | The property 'Index' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:12:1
Line |
  12 |  $test.Path = "C:\Users\user\Documents\GitHub\dfw\tool\ias\script\psx\ …
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | The property 'Path' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:14:1
Line |
  14 |  $test.Show()
     |  ~~~~~~~~~~~~
     | You cannot call a method on a null-valued expression.
MetadataError: E:\netenv\tool\ias\test.ps1:16:1
Line |
  16 |  [Package]$pkg = [Package]::new()
     |  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | Cannot convert the "Package" value of type "Package" to type "Package".
InvalidOperation: E:\netenv\tool\ias\test.ps1:18:1
Line |
  18 |  $pkg.Name = "test"
     |  ~~~~~~~~~~~~~~~~~~
     | The property 'Name' cannot be found on this object. Verify that the property exists and can be set.
InvalidOperation: E:\netenv\tool\ias\test.ps1:21:1
Line |
  21 |  $pkg.Show()
     |  ~~~~~~~~~~~
     | You cannot call a method on a null-valued expression.

Error details

Environment data

win 10； pwsh:7.5.0

Visuals

No response

[nczsl]

#def.ps1
. $psscriptroot/util.ps1

class QueryParam{
  [string] $Pattern
  [ValidateSet('bool', 'char', 'string', 'sbyte', 'short', 'int', 'long', 'byte', 'ushort', 'uint', 'ulong', 'Half', 'float', 'double', 'nint', 'nuint', 'datetime', 'DataOnly', 'TimeOnly', 'TimeSpan')]
  [string] $ColumnType
  [string] $ColumnName
}

class Package {
  [string]$Name;
  [PackageItem[]]$Items;
  Package() {
    $this.Items = @()
  }
  [void] Show() {
    echo-title "Package $($this.Name)"
    foreach ($item in $this.Items) {
      $item.Show()
    }
  }
}
class PackageItem {
  [int]$Index;
  [string]$Path;
  [void] Show() {
    $pathstr = $this.Path
    if($pathstr.Length -gt 100){
      $pathstr = $pathstr.Substring($pathstr.Length-100)
    }
    echo-subtitle-kv $this.Index $pathstr
  }
}

[nczsl]

. $psscriptroot\script\psx\def.ps1

echo-info "start parse table"


echo-info "hello"
echo-info "hello world"

[PackageItem]$test = [PackageItem]::new()

$test.Index = 1
$test.Path = "C:\Users\user\Documents\GitHub\dfw\tool\ias\script\psx\def.ps1"

$test.Show()

[Package]$pkg = [Package]::new()

$pkg.Name = "test"
# $pkg.Items += $test

$pkg.Show()

[nczsl]

I won't stick up the file 'util. ps1' temporarily as it's a bit long

[nczsl]

Assuming that the above code is executed correctly at the beginning, I can change a character in the Show method of the [Package] class, such as adding a ":" symbol here. If I execute it again, it will report the errors mentioned above. I really feel confused and don't quite understand what this is

[fasteiner]

Also it looks like something regarding Certificate usage was updated as can be seen here: pnp/powershell#4708

[nczsl]

Later on, I switched to 7.4.7; 7.4.6, it's still the same problem. I asked the AI assistant, and it said it's because PowerShell cached the state of the class. Isn't that too inconvenient? After all, scripts and command lines need to see changes immediately, not compiled and executed programs

[nczsl]

I seem to understand the reason for this mistake, probably because I, through$ When psscriptroot \ xxx \ xxx. ps1 is used to introduce external scripts, it is assumed that the referenced script also uses this method, which leads to ambiguity in $psscript and causes errors. However, I am not sure why it is correct or incorrect, but I already know that at least this error is caused by me rather than ps

[microsoft-github-policy-service]

📣 Hey @nczsl, how did we do? We would love to hear your feedback with the link below! 🗣️

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