bevyengine/bevy · error · ParseError

a '[' wasn't closed properly, got '{0}' instead

Error message

a '[' wasn't closed properly, got '{0}' instead

What it means

Parse variant BadClose of the reflect path parser: while tokenizing a path string, an open '[' was followed by a token other than the closing ']' or a valid token sequence, so bracket matching failed mid-string. The offending Token is carried in the variant; fix the path literal so brackets are properly closed.

Source

Thrown at crates/bevy_reflect/src/path/parse.rs:30

#[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 }
    }

    fn next_token(&mut self) -> Option<Token<'a>> {

View on GitHub (pinned to 396ca72708)

Solutions

1. Close the bracket with ']': e.g. field[0]
2. Fix mismatched brackets or braces in the path string

When it happens

Trigger: Thrown at crates/bevy_reflect/src/path/parse.rs:30 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/8e8af7949866aa76. Report an issue: GitHub.