[Bug] Installation process incorrect/not working

[michaelwcl]

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Expected behavior

A successful install via pip and being able to use the tvm package.

Actual behavior

Build process seems to finish but with a lot of warnings, and tvm-ffi cannot be installed from /path/to/tvm/build/3rdparty/tvm-ffi via pip.
Error: "ERROR: Directory '.' is not installable. Neither 'setup.py' nor 'pyproject.toml' found."

As a sidenote, I've tried 0.21 and 0.22 as well, which I downloaded as tarballs from the github releases. It seems like the build from source process documented on the website no loner applies to those older versions.

Environment

Ubuntu 24.04, tvm version is the latest (cloned the repo on Oct 23, 2025).

Steps to reproduce

Follow the instructions on https://tvm.apache.org/docs/install/from_source.html

Triage

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• needs-triage

[michaelwcl]

I've found a workaround, that being to use python 3.11, and force the llvmdev version to 15.