dotnetenv needs DOTNET_ROOT to detect .NET on Linux, macOS

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scivision
scivision 2025-7-21
编辑： scivision 2025-7-23
This is a solution to an undocumented issue:
dotnetenv() documentation (or anywhere else on mathworks.com) doesn't mention that environment variable DOTNET_ROOT is vital for Matlab to detect the .NET installation, particularly on non-Windows platforms newly supported for .NET.
If anyone is having an issue getting Matlab to detect their .NET installation, particularly on macOS or Linux:
from system Terminal: dotnet --info
in Matlab, if getenv("DOTNET_ROOT") isn't set or doesn't match dotnet --info:
setenv("DOTNET_ROOT", <DOTNET_ROOT path from dotnet --info>)
in Matlab: dotnetenv("core", Version=<major version .NET installed>)

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