bevyengine/bevy · error · ParseError

a '[' wasn't closed, reached end of path string before findi

Error message

a '[' wasn't closed, reached end of path string before finding a ']'

What it means

Reflect path parse error Error::Unclosed: the path string contains an opening '[' for an index/attribute access that is never closed with ']' before the string ends. Close the bracket, e.g. ".foo[0]".

Source

Thrown at crates/bevy_reflect/src/path/parse.rs:27

/// An error that occurs when parsing reflect path strings.
#[derive(Debug, PartialEq, Eq, Error)]
#[error(transparent)]
pub struct ParseError<'a>(Error<'a>);

/// A parse error for a path string.
#[derive(Debug, PartialEq, Eq, Error)]
enum Error<'a> {
    #[error("expected an identifier, but reached end of path string")]
    NoIdent,

    #[error("expected an identifier, got '{0}' instead")]
    ExpectedIdent(Token<'a>),

    #[error("failed to parse index as integer")]
    InvalidIndex(#[from] ParseIntError),

    #[error("a '[' wasn't closed, reached end of path string before finding a ']'")]
    Unclosed,

    #[error("a '[' wasn't closed properly, got '{0}' instead")]
    BadClose(Token<'a>),

    #[error("a ']' was found before an opening '['")]
    CloseBeforeOpen,
}

pub(super) struct PathParser<'a> {
    path: &'a str,
    remaining: &'a [u8],
}

impl<'a> PathParser<'a> {
    pub(super) fn new(path: &'a str) -> Self {
        let remaining = path.as_bytes();
        PathParser { path, remaining }

View on GitHub (pinned to 396ca72708)

Solutions

  1. Close the bracket: e.g. field[0 instead of field[0]
  2. Check for truncated or mistyped path strings
Defensive patterns

Strategy: validation

When it happens

Trigger: Thrown at crates/bevy_reflect/src/path/parse.rs:27 when the library encounters an invalid state.

Common situations: See trigger scenarios.


AI-assisted analysis of bevyengine/bevy@396ca72708 (2026-08-20). Data as JSON: /api/errors/63fd5145d8ee97fa. Report an issue: GitHub.