{"record":{"id":"89cd4a13c18e3c49","repo":"reflex-dev/reflex","slug":"path-does-not-exist-path-r-for-field-name","errorCode":null,"errorMessage":"Path does not exist: {path!r} for {field_name}","messagePattern":"Path does not exist: (.+?) for (.+?)","errorType":"exception","errorClass":"EnvironmentVarValueError","httpStatus":null,"severity":"error","filePath":"packages/reflex-base/src/reflex_base/environment.py","lineNumber":135,"sourceCode":"\n\ndef interpret_existing_path_env(value: str, field_name: str) -> ExistingPath:\n    \"\"\"Interpret a path environment variable value as an existing path.\n\n    Args:\n        value: The environment variable value.\n        field_name: The field name.\n\n    Returns:\n        The interpreted value.\n\n    Raises:\n        EnvironmentVarValueError: If the path does not exist.\n    \"\"\"\n    path = Path(value)\n    if not path.exists():\n        msg = f\"Path does not exist: {path!r} for {field_name}\"\n        raise EnvironmentVarValueError(msg)\n    return path\n\n\ndef interpret_path_env(value: str, field_name: str) -> Path:\n    \"\"\"Interpret a path environment variable value.\n\n    Args:\n        value: The environment variable value.\n        field_name: The field name.\n\n    Returns:\n        The interpreted value.\n    \"\"\"\n    return Path(value)\n\n\n@dataclasses.dataclass\nclass _InvalidPlugin(Plugin):","sourceCodeStart":117,"sourceCodeEnd":153,"githubUrl":"https://github.com/reflex-dev/reflex/blob/45b8ed5ab735f8a56bbb09a42384f030eb0208e7/packages/reflex-base/src/reflex_base/environment.py#L117-L153","documentation":"interpret_existing_path_env requires the given path to exist on disk; Path(value).exists() failing raises EnvironmentVarValueError. Used for config fields that must point at an existing file or directory.","triggerScenarios":"Setting a path-typed env var (annotated as ExistingPath) to a missing file/directory, e.g. SSL_CERT=/etc/ssl/cert.pem when the file isn't mounted.","commonSituations":"Docker volumes not mounted, running from a different working directory with relative paths, or referencing files not present in the deployment image.","solutions":["Verify the path exists at runtime (ls / check mount)","Fix the path: absolute path, correct working directory, or mount the file into the container","Create the expected file/directory if it's app-owned"],"exampleFix":"# before\nSSL_CERT=/etc/ssl/cert.pem  # not mounted\n# after (docker)\nvolumes: [\"./certs/cert.pem:/etc/ssl/cert.pem:ro\"]\n","handlingStrategy":"validation","validationCode":"from pathlib import Path\np = Path(os.environ[\"SSL_CERT\"])\nif not p.exists():\n    raise SystemExit(f\"SSL_CERT path does not exist: {p}\")","typeGuard":"def is_existing_path(v: str) -> bool:\n    return Path(v).exists()","tryCatchPattern":"except EnvironmentVarValueError:\n    p = Path(\"./default/cert.pem\")  # fallback if it exists","preventionTips":["Add container healthchecks verifying required mounts","Prefer absolute paths in env config"],"tags":["environment","path","filesystem","validation"],"backgroundTag":"env-var-validation","analyzedSha":"45b8ed5ab735f8a56bbb09a42384f030eb0208e7","analyzedAt":"2026-08-28T19:25:27.644Z","schemaVersion":2},"datasetVersion":"2026-08-28T21:17:43.275Z"}