Issue installing pytorch 2.7 and torchvision together

[anwai98]

Comment:

Hi team,

I am having trouble installing pytorch=2.7 and torchvision together in the same environment (CPU / GPU compatible pytorch regardless)

Steps for my installation:

• micromamba create -n test-neu -c conda-forge python=3.11 pytorch=2.7 torchvision

The installation above leads to a long error trace:

error trace

anwai@anwai:~$ micromamba create -n test-neu -c conda-forge python=3.11 pytorch=2.7 torchvision
conda-forge/linux-64                                        Using cache
conda-forge/noarch                                          Using cache
nodefaults/linux-64                                125.0 B @ 334.0 B/s  0.3s
nodefaults/noarch                                  116.0 B @ 215.0 B/s  0.5s

error    libmamba Could not solve for environment specs
    The following packages are incompatible
    ├─ python =3.11 * is installable and it requires
    │  └─ python_abi =3.11 *_cp311, which can be installed;
    ├─ pytorch =2.7 * is installable with the potential options
    │  ├─ pytorch [2.0.0|2.1.0|...|2.7.0] would require
    │  │  └─ python_abi =3.10 *_cp310 but there are no viable options
    │  │     ├─ python_abi 3.10 would require
    │  │     │  └─ python =3.10 *_cpython, which conflicts with any installable versions previously reported;
    │  │     └─ python_abi 3.10 conflicts with any installable versions previously reported;
    │  ├─ pytorch [2.0.0|2.1.0|...|2.7.0] would require
    │  │  └─ python_abi =3.9 *_cp39 but there are no viable options
    │  │     ├─ python_abi 3.9 would require
    │  │     │  └─ python =3.9 *_cpython, which conflicts with any installable versions previously reported;
    │  │     └─ python_abi 3.9 conflicts with any installable versions previously reported;
    │  ├─ pytorch [2.0.0|2.1.0|...|2.7.0] would require
    │  │  └─ __cuda =* *, which is missing on the system;
    │  ├─ pytorch [2.1.0|2.1.2|...|2.7.0] would require
    │  │  └─ python_abi =3.12 *_cp312, which requires
    │  │     └─ python =3.12 *_cpython, which conflicts with any installable versions previously reported;
    │  ├─ pytorch [2.4.1|2.5.1|2.6.0|2.7.0] would require
    │  │  └─ python_abi =3.13 *_cp313 but there are no viable options
    │  │     ├─ python_abi 3.13 would require
    │  │     │  └─ python =3.13 *_cpython, which conflicts with any installable versions previously reported;
    │  │     └─ python_abi 3.13 would require
    │  │        └─ python =3.13 *_cp313, which conflicts with any installable versions previously reported;
    │  └─ pytorch 2.7.0, which can be installed;
    └─ torchvision =* * is not installable because there are no viable options
       ├─ torchvision [0.12.0|0.13.0|...|0.21.0] would require
       │  └─ python_abi =3.10 *_cp310 but there are no viable options
       │     ├─ python_abi 3.10, which cannot be installed (as previously explained);
       │     └─ python_abi 3.10 conflicts with any installable versions previously reported;
       ├─ torchvision [0.10.0|0.10.1|...|0.9.1] would require
       │  └─ python_abi =3.8 *_cp38 but there are no viable options
       │     ├─ python_abi 3.8 would require
       │     │  └─ python =3.8 *_cpython, which conflicts with any installable versions previously reported;
       │     └─ python_abi 3.8 conflicts with any installable versions previously reported;
       ├─ torchvision [0.10.0|0.10.1|...|0.9.1] would require
       │  └─ python_abi =3.9 *_cp39 but there are no viable options
       │     ├─ python_abi 3.9, which cannot be installed (as previously explained);
       │     └─ python_abi 3.9 conflicts with any installable versions previously reported;
       ├─ torchvision [0.15.1|0.15.2] would require
       │  └─ pytorch >=2.0.0,<2.1.0a0 * but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch 2.0.0 conflicts with any installable versions previously reported;
       │     ├─ pytorch [2.0.0|2.1.0|...|2.4.0] would require
       │     │  └─ python_abi =3.8 *_cp38 but there are no viable options
       │     │     ├─ python_abi 3.8, which cannot be installed (as previously explained);
       │     │     └─ python_abi 3.8 conflicts with any installable versions previously reported;
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     └─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       ├─ torchvision [0.15.1|0.15.2|...|0.21.0] would require
       │  └─ pytorch [=* cuda126*|=2.0 cuda112*|...|==2.1 cuda120*], which cannot be installed (as previously explained);
       ├─ torchvision 0.16.1 would require
       │  └─ pytorch >=2.1.0,<2.2.0a0 * but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.4.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch 2.1.0 conflicts with any installable versions previously reported;
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     └─ pytorch 2.1.2 conflicts with any installable versions previously reported;
       ├─ torchvision 0.16.1 would require
       │  └─ pytorch >=2.1.2,<2.2.0a0 * but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.4.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     └─ pytorch 2.1.2 conflicts with any installable versions previously reported;
       ├─ torchvision [0.16.1|0.18.0|...|0.21.0] would require
       │  └─ python_abi =3.12 *_cp312, which cannot be installed (as previously explained);
       ├─ torchvision [0.18.0|0.18.1] would require
       │  └─ pytorch =2.3 cpu* but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.4.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     └─ pytorch [2.3.0|2.3.1] conflicts with any installable versions previously reported;
       ├─ torchvision [0.19.0|0.19.1] would require
       │  └─ pytorch =2.4 cpu* but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.4.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch 2.4.0 conflicts with any installable versions previously reported;
       │     ├─ pytorch 2.4.1 conflicts with any installable versions previously reported;
       │     └─ pytorch [2.4.1|2.5.1|2.6.0|2.7.0], which cannot be installed (as previously explained);
       ├─ torchvision 0.19.1 would require
       │  └─ pytorch >=2.4.1,<2.5.0a0 * but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch 2.4.1 conflicts with any installable versions previously reported;
       │     └─ pytorch [2.4.1|2.5.1|2.6.0|2.7.0], which cannot be installed (as previously explained);
       ├─ torchvision 0.20.1 would require
       │  └─ pytorch >=2.5.1,<2.6.0a0 * but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.4.1|2.5.1|2.6.0|2.7.0], which cannot be installed (as previously explained);
       │     └─ pytorch 2.5.1 conflicts with any installable versions previously reported;
       ├─ torchvision [0.20.1|0.21.0] would require
       │  └─ python_abi =3.13 *_cp313, which cannot be installed (as previously explained);
       ├─ torchvision 0.21.0 would require
       │  └─ pytorch >=2.6.0,<2.7.0a0 * but there are no viable options
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.0.0|2.1.0|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.1.0|2.1.2|...|2.7.0], which cannot be installed (as previously explained);
       │     ├─ pytorch [2.4.1|2.5.1|2.6.0|2.7.0], which cannot be installed (as previously explained);
       │     └─ pytorch 2.6.0 conflicts with any installable versions previously reported;
       ├─ torchvision [0.10.0|0.10.1|0.8.2|0.9.0|0.9.1] would require
       │  └─ python_abi =3.6 *_cp36m, which conflicts with any installable versions previously reported;
       └─ torchvision [0.10.0|0.10.1|...|0.9.1] would require
          └─ python >=3.7,<3.8.0a0 *, which conflicts with any installable versions previously reported.
critical libmamba Could not solve for environment specs

Can someone clarify this please?

Thanks!

[h-vetinari]

We haven't rebuilt torchvision for pytorch 2.7 yet, because the migration was stuck on an infrastructure issue until a few hours ago. The bot should now raise a PR within a few hours, and assuming everything builds fine, you should have torchvision builds compatible with pytorch 2.7 in a day or so.

[h-vetinari]

Done in #120

[anwai98]

That sounds great. Thanks @h-vetinari!