Extension Signature Verification Failed: Rainbow CSV

[smg6511]

Type: Bug

Simply happens when trying to install the extension.

Log

2025-10-14 10:24:57.563 [info] [Shared] Getting Manifest... mechatroner.rainbow-csv
2025-10-14 10:24:57.649 [info] [Shared] Installing extension: mechatroner.rainbow-csv {"isMachineScoped":false,"installPreReleaseVersion":false,"pinned":false,"profileLocation":{"$mid":1,"external":"vscode-userdata:/Users/jhg2/.vscode/extensions/extensions.json","path":"/Users/jhg2/.vscode/extensions/extensions.json","scheme":"vscode-userdata"},"isApplicationScoped":false,"productVersion":{"version":"1.103.2","date":"2025-08-20T16:45:34.255Z"}}
2025-10-14 10:24:58.339 [info] [Shared] Extension signature verification result for mechatroner.rainbow-csv: UnknownError. Executed: false. Duration: 164ms.
2025-10-14 10:24:58.346 [error] [Shared] Error while installing the extension mechatroner.rainbow-csv Signature verification failed with 'UnknownError' error. vscode-userdata:/Users/jhg2/.vscode/extensions/extensions.json
2025-10-14 10:24:58.347 [error] [Shared] [uncaught exception in sharedProcess]: Signature verification failed with 'UnknownError' error.: SignatureVerificationInternal: Signature verification failed with 'UnknownError' error.
at Th.Cb (file:///Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-utility/sharedProcess/sharedProcessMain.js:74:65924)
at async Th.Bb (file:///Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-utility/sharedProcess/sharedProcessMain.js:74:64395)

VS Code version: Code 1.103.2 (6f17636121051a53c88d3e605c491d22af2ba755, 2025-08-20T16:45:34.255Z)
OS version: Darwin x64 20.6.0

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Team, please add a Type:Bug/Type:Feature/Type:CustomerSupport label as applicable.

[madhurivadaligithub]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.101.1. Please try upgrading to the latest version and checking whether this issue remains. Could you please out to us through our VS Marketplace Support (VSMarketplace@microsoft.com) alias for further clarifications.

Regards,
VS Marketplace Tea

[smg6511]

@madhurivadaligithub - My installed version at the time was actually 1.103.2, but your hint about VS Code's installed version pointed me in the right direction. It's interesting though: That was only two versions back (July 2025) — seems like the verification should work for a number of previous versions. Anyway, I updated to the most recent (1.105.1) and the sig verification succeeded. Thx ;-)