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VS 2026 preview: .Net Framework FSI doesn't evaluate __SOURCE_DIRECTORY__ properly #18907

Closed as duplicate of#18908
Bug
Closed as duplicate of#18908
VS 2026 preview: .Net Framework FSI doesn't evaluate __SOURCE_DIRECTORY__ properly#18907
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@smoothdeveloper
smoothdeveloper
opened on Sep 16, 2025

In VS 2026 preview, when using .NET Framework version of FSI, evaluating __SOURCE_DIRECTORY__ yields "C:\Users\gauth\AppData\Local\Temp" rather than the directory containing the .fsx file being edited / evaluated.

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