Failed to create docker container: failed to copy secret file into container

[galbacarys]

Affected area

Local development

Supabase CLI version

v2.114.0

Operating system

Ubuntu 24.04 (in WSL)

Installation method

npm

Command

npx supabase start

Actual output

NotFound: FileSystem.readFile (/home/user/.supabase/profile)
Starting database...
Stopping containers...
Pruned containers: [266fa96f6c43f80592d4787a6b1da255422eb50743ce3a41d39d19bb111248ca]
Pruned volumes: [supabase_db_myproject]
Pruned network: [supabase_network_myproject]
failed to create docker container: failed to copy secret file into container: lstat /tmp/supabase-start-secret-RSf80t: no such file or directory

Expected behavior

I expected Supabase to stand up its local development environment.

Steps to reproduce

In a bare directory, run:

1. supabase init
2. supabase start

The error appears as soon as the docker infrastructure is created.

Crash report ID

No response

Docker and service versions

`docker version`:

Client:
 Version:           29.6.1
 API version:       1.55
 Go version:        go1.26.5
 Git commit:        8900f1d
 Built:             Thu Jul 16 20:08:21 2026
 OS/Arch:           linux/amd64
 Context:           default

Server:
 Engine:
  Version:          29.6.1
  API version:      1.55 (minimum version 1.40)
  Go version:       go1.26.5
  Git commit:       8ec5ab3
  Built:            Thu Jul 16 20:09:02 2026
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v2.3.3
  GitCommit:        aad11006b869517fcd3009450b6f82da282e1a9b
 runc:
  Version:          1.5.1
  GitCommit:
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

`supabase services`:

   SERVICE IMAGE          | LOCAL                  | LINKED
  ------------------------|------------------------|--------
   supabase/postgres      | 17.6.1.158             | -
   supabase/gotrue        | v2.195.0               | -
   postgrest/postgrest    | v16.1                  | -
   supabase/realtime      | v2.124.4               | -
   supabase/storage-api   | v1.69.0                | -
   supabase/edge-runtime  | v1.74.3                | -
   supabase/studio        | 2026.08.10-sha-5b68af1 | -
   supabase/postgres-meta | v0.97.0                | -
   supabase/logflare      | 1.50.2                 | -
   supabase/supavisor     | 2.9.7                  | -

Additional context

I can't think of anything unusual about this setup except that it's running in WSL. I installed docker via sudo snap install docker and added myself to the docker group, other than that nothing weird on this environment.