apache
[Bug] Installation process incorrect/not working
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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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I've found a workaround, that being to use python 3.11, and force the llvmdev version to 15.
I have the same problem even after I change the llvmdev version to 15. My OS is MacOS 26.
I'm new to tvm and I guess I figured out what is going on here. The document said:
Apache TVM relies on the tvm-ffi package to support its python bindings. Therefore, after we finish the build, we need to install the tvm-ffi package.
cd 3rdparty/tvm-ffi; pip install .; cd ..
Actually, the path of 3rdparty/tvm-ffi; is relative to the tvm project path instead of the build directory, which is confusing in this context. Therefore, one shall execute cd /path_to_tvm_project/3rdparty/tvm-ffi; pip install .; cd ...
@hrtan99 that worked haha. Had the same issue and found the solution here
