[BUG] DLL load failed while importing _kalpy

[ghost]

Debugging checklist

[ Yes ] Have you updated to latest MFA version?
[ Yes ] Have you tried rerunning the command with the --clean flag?

Describe the issue
When I type mfa version into the Anaconda Prompt (Miniconda3), I get the following issue:
Traceback (most recent call last):
File "C:\ProgramData\miniconda3\envs\aligner\Scripts\mfa-script.py", line 5, in
from montreal_forced_aligner.command_line.mfa import mfa_cli
File "C:\ProgramData\miniconda3\envs\aligner\lib\site-packages\montreal_forced_aligner_init_.py", line 4, in
import montreal_forced_aligner.acoustic_modeling as acoustic_modeling
File "C:\ProgramData\miniconda3\envs\aligner\lib\site-packages\montreal_forced_aligner\acoustic_modeling_init_.py", line 7, in
from montreal_forced_aligner.acoustic_modeling.base import AcousticModelTrainingMixin # noqa
File "C:\ProgramData\miniconda3\envs\aligner\lib\site-packages\montreal_forced_aligner\acoustic_modeling\base.py", line 12, in
from _kalpy.gmm import AccumAmDiagGmm
ImportError: DLL load failed while importing _kalpy: The specified module could not be found.

For Reproducing your issue
Open Anaconda Prompt (Miniconda3)
conda activate aligner
mfa version

1. Corpus structure
   • What language is the corpus in?
   • How many files/speakers?
   • Are you using lab files or TextGrid files for input?
2. Dictionary
   • Are you using a dictionary from MFA? If so, which one?
   • If it's a custom dictionary, what is the phoneset?
3. Acoustic model
   • If you're using an acoustic model, is it one download through MFA? If so, which one?
   • If it's a model you've trained, what data was it trained on?

Log file
Please attach the log file for the run that encountered an error (by default these will be stored in ~/Documents/MFA).

Desktop (please complete the following information):

• OS: [Windows]
• Version [Windows 10]
• Any other details about the setup (Cloud, Docker, etc)

Additional context
Add any other context about the problem here.

[edappen]

How did you resolve this issue?

[yeungpinghei]

I'm running into the same issue. May I know how you fixed it?

[SaurabhKNath]

Same issue. Please help!

[Kedersha]

Same here! Not sure if closed issues always generate notifications, so I'm going to tag @shozuru as well. Do you recall what you did to resolve this issue?

[mmcauliffe]

Hi all, I'm having trouble replicating this, but if you can provide the following information, that would help in me tracking down the root cause:

1. What version of Windows are you running? I've only seen reports on Windows 10 so far, and I only have access to Windows 11.
2. For your environment, what is the output of running conda list? Specifically looking at the version of montreal-forced-aligner, kalpy and kaldi.

Can you try out some potential fixes and see if any of them fix the issue:

1. Double check you're using the cpu version of Kaldi, as there was this issue: Running MFA>=3.0.0 on a CPU-only machine #774 (on Linux, and I'm not sure if the issue would manifest as a DLL load error on windows, but it might), so try running conda install -c conda-forge kaldi=5.5.1112=cpu*
2. Use mamba as a solver, see the note in https://montreal-forced-aligner.readthedocs.io/en/latest/installation.html#general-installation and then run mamba update -c conda-forge montreal-forced-aligner --update-deps to make sure everything's up to the latest version (you can try using --update-deps with base conda, but I find the environment solving very slow)
3. Re-create an environment with specific versions: conda create -n aligner -c conda-forge python=3.11 montreal-forced-aligner=3.0.2 kalpy=0.6.2 kaldi=5.5.1112=cpu*
4. Try environments with different versions of python in case there's some interaction with Windows 10/MSVC versions?

[ghost]

If I remember correctly, I uninstalled and then installed a more stable version (some version < 2.9), and that seemed to fix it.
conda create -n aligner -c conda-forge "montreal-forced-aligner<2.9" I also ran Anaconda PowerShell as an administrator if that changes anything.

[SaurabhKNath]

Hi Michael, @mmcauliffe, I am using Windows 10 and the versions of montreal-forced-aligner, kalpy, kaldi were 3.0.2, 0.6.3, 5.5.1112 respectively.

Thanks for sharing the fixes, and the 3rd option fixed the issue of importing _kalpy and allowed me to go to the mfa validate xx step, which was successful. However, when I ran mfa align xx, I got another error called [WinError 183]. Please see the screenshot attached. Do you have any suggestions for fixing this? Thanks a lot.

PS: I'm working on Assamese using the english_mfa acoustic model.

[HamidMojarrad]

I am having the same problem. I found the problem in both my Windows and Linux computers. Would you please walk me through the solution? Downgrading the aligner to a lower version might help but it lacks enough acoustic and dictionary dataset.

[lcavasso]

Here's the requested info from one computer that had this issue. Using conda create -n aligner -c conda-forge python=3.11 montreal-forced-aligner=3.0.2 kalpy=0.6.2 kaldi=5.5.1112=cpu* resolved it

OS: Windows 11 Home Edition 22H2
output of conda list: conda list.txt

[camille-lnrs]

Hey everyone,
I have the same error and the line conda create -n aligner -c conda-forge python=3.11 montreal-forced-aligner=3.0.2 kalpy=0.6.2 kaldi=5.5.1112=cpu* havn't resolved the problem. Any other cues ? I tried all the mentionned solution and mfa works in terminal but not in python, however I do need it to work on python.

OS : Windows 11

Thank you in advanced !

[mmcauliffe]

Can you try running conda update -c montreal-forced-aligner kalpy kaldi=*=cpu* --update-deps? That will get the latest version that should be synced across all versions. From 3.0.5 onward, there is a mfa_update command you can run that will get the latest versions of everything, see: https://montreal-forced-aligner.readthedocs.io/en/latest/installation.html#updating-montreal-forced-aligner