@pulumi/terraform unsupported checkable object kind "var"

[pflajsman]

What happened?

Hello,
We use pulumi and terraform together and we reference our terraform state in pulumi. In the last few days, we get the error "unsupported checkable object kind "var"" from our terraform state reference. We think that error can be caused old terraform version in @pulumi/terraform. Do you have a plan to upgrade to latest? Could you let me know why you don't reflect new terraform versions in package?

Example

error: Preview failed: error constructing backend state manager: 13 problems:

• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
• unsupported checkable object kind "var"
  error: preview failed

Output of pulumi about

PS C:\git\infrastructure\pulumi\deployments\persistent\fastly> pulumi about
CLI
Version 3.101.1
Go Version go1.21.5
Go Compiler gc

Plugins
NAME VERSION
nodejs unknown

Host
OS Microsoft Windows 11 Pro
Version 10.0.22631 Build 22631
Arch x86_64

This project is written in nodejs: executable='C:\Program Files\nodejs\node.exe' version='v21.7.3'

Current Stack: organization/persistent-fastly/qa

Additional context

No response

Contributing

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[mjeffryes]

Hi @pflajsman, unfortunately, newer versions of terraform are BUSL licensed (ie. no longer open source) so we're not able to update version used in this provider