zed-industries/zed · error

markers `{start_id}` and `{end_id}` belong to different cont

Error message

markers `{start_id}` and `{end_id}` belong to different context snippets that are not contiguous excerpts of the same file

What it means

Raised in build_patch_from_spans(): the start and end markers of a span resolved to different context snippets that are not contiguous excerpts of the same file, so the span would cross a file discontinuity and cannot be applied.

Source

Thrown at crates/zeta_prompt/src/hashed_regions.rs:677

    let snippets = merge_contiguous_snippets(input, marker_table)?;
    let mut marker_index: HashMap<&str, (usize, usize)> = HashMap::new();
    for (snippet_ix, snippet) in snippets.iter().enumerate() {
        for (id, offset) in &snippet.markers {
            marker_index.insert(id.as_str(), (snippet_ix, *offset));
        }
    }

    let mut edits: Vec<ParsedSpanEdit> = Vec::new();
    for (start_id, end_id, raw_new_span) in spans {
        let &(start_snippet, start_byte) = marker_index
            .get(start_id.as_str())
            .with_context(|| format!("unknown start marker `{start_id}`"))?;
        let &(end_snippet, end_byte) = marker_index
            .get(end_id.as_str())
            .with_context(|| format!("unknown end marker `{end_id}`"))?;

        if start_snippet != end_snippet {
            return Err(anyhow!(
                "markers `{start_id}` and `{end_id}` belong to different context snippets \
                 that are not contiguous excerpts of the same file"
            ));
        }
        if start_byte > end_byte {
            return Err(anyhow!(
                "start marker `{start_id}` must come before end marker `{end_id}`"
            ));
        }

        let old_text = snippets[start_snippet].text.as_ref();
        let old_span = &old_text[start_byte..end_byte];

        let cursor_in_span = raw_new_span.find(cursor_marker);
        let mut new_span = raw_new_span.replace(cursor_marker, "");
        if old_span.is_empty() {
            if !new_span.is_empty() && !new_span.ends_with('\n') {
                new_span.push('\n');

View on GitHub (pinned to f4178619ac)

Solutions

1. Retry so the model uses markers from the same/contiguous snippet

When it happens

Trigger: Thrown at crates/zeta_prompt/src/hashed_regions.rs:677 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zed-industries/zed@f4178619ac (2026-08-20). Data as JSON: /api/errors/6f03cbf654ca1f8b. Report an issue: GitHub.