{"record":{"id":"b59b0420ecd96bc4","repo":"dagger/dagger","slug":"failed-to-check-outer-env-file-type-at-q-w","errorCode":null,"errorMessage":"failed to check outer env file type at %q: %w","messagePattern":"failed to check outer env file type at %q: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"core/modulesource.go","lineNumber":1304,"sourceCode":"\tvar isRegularFile bool\n\tif err := dag.Select(ctx, dag.Root(), &isRegularFile,\n\t\tdagql.Selector{Field: \"host\"},\n\t\tdagql.Selector{\n\t\t\tField: \"directory\",\n\t\t\tArgs: []dagql.NamedInput{\n\t\t\t\t{Name: \"path\", Value: dagql.String(envFileDir)},\n\t\t\t\t{Name: \"include\", Value: dagql.ArrayInput[dagql.String]{dagql.String(envFileName)}},\n\t\t\t},\n\t\t},\n\t\tdagql.Selector{\n\t\t\tField: \"exists\",\n\t\t\tArgs: []dagql.NamedInput{\n\t\t\t\t{Name: \"path\", Value: dagql.String(envFileName)},\n\t\t\t\t{Name: \"expectedType\", Value: dagql.Opt(ExistsTypeRegular)},\n\t\t\t},\n\t\t},\n\t); err != nil {\n\t\treturn nil, \"\", fmt.Errorf(\"failed to check outer env file type at %q: %w\", envFilePath.String(), err)\n\t}\n\tif !isRegularFile {\n\t\treturn &EnvFile{}, \"\", nil\n\t}\n\tvar envFile *EnvFile\n\tif err := dag.Select(ctx, dag.Root(), &envFile,\n\t\tdagql.Selector{Field: \"host\"},\n\t\tdagql.Selector{\n\t\t\tField: \"file\",\n\t\t\tArgs: []dagql.NamedInput{\n\t\t\t\t{Name: \"path\", Value: envFilePath},\n\t\t\t},\n\t\t},\n\t\tdagql.Selector{\n\t\t\tField: \"asEnvFile\",\n\t\t\tArgs: []dagql.NamedInput{\n\t\t\t\t{Name: \"expand\", Value: dagql.Opt(dagql.NewBoolean(true))},\n\t\t\t},","sourceCodeStart":1286,"sourceCodeEnd":1322,"githubUrl":"https://github.com/dagger/dagger/blob/82ba2681dbe30d3547a1dc50ea495900ab5b6047/core/modulesource.go#L1286-L1322","documentation":"This error wraps a failure while probing whether the outer .env file (e.g. `<module-root>/.env`) exists and is a regular file, during loading of environment files for a Dagger module source. The existence check itself is a dagql call (`dag.Select` on a Directory `file` field with `expectedType: ExistsTypeRegular`), and any error returned by that field is wrapped with the offending path. Dagger wraps it so the developer can see exactly which env-file path could not be stat'ed.","triggerScenarios":"Calling module source loading / env file loading (innerEnvFile / outer env handling in ModuleSource, e.g. ModuleSource.LoadUserDefaults paths) when the directory containing the .env file cannot be resolved by the dagql server — typically because the client filesystem metadata is wrong (module running without proper caller client metadata) or the context directory is unavailable.","commonSituations":"Running a module function whose source directory was deleted or remounted mid-call; using a git/remote module source whose env file path is not materialized locally; stale client metadata after NonModuleParentClientMetadata changes.","solutions":["Verify the path exists and is readable on the caller's host; re-run `dagger develop` or re-sync the module source","Ensure you are inside a module call context (the code requires CurrentDagqlServer/CurrentQuery to work); don't invoke this path from a bare context","Re-create the .env file or remove it if not needed — the code treats a missing regular file as an empty EnvFile, so only probe errors are fatal","Update Dagger CLI/engine; this area of modulesource.go has been actively reworked"],"exampleFix":"// before: calling env loading with a stale/renamed module root\nmod.LoadUserDefaults(ctx)\n// after: ensure the source root still contains the file before loading\nif _, err := os.Stat(filepath.Join(moduleRoot, \".env\")); err != nil {\n    log.Printf(\"no outer .env, skipping: %v\", err)\n} else {\n    mod.LoadUserDefaults(ctx)\n}","handlingStrategy":"try-catch","validationCode":"// Go: probe the file before triggering env-file loading\nif _, err := os.Stat(filepath.Join(moduleRoot, \".env\")); err != nil {\n    if os.IsNotExist(err) { /* skip outer env file */ }\n}","typeGuard":"func envFileAccessible(root string) bool {\n    fi, err := os.Stat(filepath.Join(root, \".env\"))\n    return err == nil && !fi.IsDir()\n}","tryCatchPattern":"envFile, _, err := loadOuterEnvFile(ctx, src)\nif err != nil {\n    if strings.Contains(err.Error(), \"failed to check outer env file type\") {\n        log.Printf(\"outer env file unavailable, continuing with defaults: %v\", err)\n        envFile = &EnvFile{}\n    } else {\n        return err\n    }\n}","preventionTips":["Verify the module source root is synced and readable before calls","Keep .env a regular file, not a symlink or directory","Keep CLI/engine versions in sync"],"tags":["go","filesystem","env-file","dagger"],"backgroundTag":"env-file-probe-failed","analyzedSha":"82ba2681dbe30d3547a1dc50ea495900ab5b6047","analyzedAt":"2026-09-05T07:21:37.930Z","contentChangedAt":"2026-09-05T07:21:37.930Z","schemaVersion":2},"datasetVersion":"2026-09-12T12:17:11.808Z"}