Error exporting to safetensors (Execution error: failed to write model: IO error: No such file or directory (os error 2))

[jterrano]

Hi there,

I'm trying to export the vindex back to safetensors by running:

larql> COMPILE CURRENT INTO MODEL "Output/gemma3-4b-edited/" FORMAT safetensors;
But it returns: Error: Execution error: failed to write model: IO error: No such file or directory (os error 2)

Does anyone is having this error? I have tried all sort of combinations of steps. The folder exists.

Hope someone can help me,

Thanks!

[yudin-s]

This looks like a filesystem path problem during the final write, not a safetensors format problem.

COMPILE CURRENT INTO MODEL "Output/gemma3-4b-edited/" is resolved relative to the process working directory that launched larql, not necessarily relative to where your source model or vindex lives. I would first prove the exact path from inside the same shell/session:

larql> COMPILE CURRENT INTO MODEL "./gemma3-4b-edited" FORMAT safetensors;

If that works, the problem is the Output/... path. Then check from the shell before starting larql:

pwd
ls -la Output
mkdir -p Output/gemma3-4b-edited

Then try without the trailing slash:

larql> COMPILE CURRENT INTO MODEL "Output/gemma3-4b-edited" FORMAT safetensors;

Two other things worth checking:

• make sure the input vindex was built with weights included, otherwise COMPILE INTO MODEL cannot emit a standalone model;
• make sure Output is not a symlink or a mounted folder with restricted permissions.

If it still fails, the useful detail for the maintainer would be the current working directory, the absolute output path you expect, and whether COMPILE CURRENT INTO MODEL "./test-out" FORMAT safetensors; fails the same way.

If this solves it, please mark this comment as the answer so other people can find it faster.

[jterrano]

Thanks for the assistance, really appreciate your time,

I've tried several combinations, including the ones you suggested. I can see that it produce a hidden folder and start to create files, around 5 files. As soon the error is raised the folder is deleted.

Also I extracted the vindex using WITH ALL clause, that according to the documentation it should allow to compile.

EXTRACT MODEL "google/gemma-3-4b-it" INTO "gemma3-4b.vindex" WITH ALL;

Hope this information help to others,

[yudin-s]

That extra detail changes the diagnosis a bit: the output directory is writable, because Larql creates the temporary/hidden folder and starts writing files. The failure is probably happening while the exporter is reading or materializing one of the expected model files, then it cleans up the partial output directory after the exception.

Since you used WITH ALL, the next useful check is to find the exact missing path, not keep changing the destination folder. On Windows I would use Process Monitor for one run and filter on:

• Process name: the Larql executable;
• Result: NAME NOT FOUND;
• Path contains your vindex/model/output folder.

Also try one run with a very short absolute output path to rule out quoting/path-length issues:

larql> COMPILE CURRENT INTO MODEL "C:/tmp/larql-test-out" FORMAT safetensors;

If ProcMon shows a specific missing .safetensors, config, tokenizer, or shard file, that filename is the key thing to paste back here. If it only fails inside the temporary output folder after several files are written, this is likely an exporter bug and the maintainer will need that missing-path trace plus the exact Larql version.