emberjs/ember.js · error · SyntaxError

Using "./" is not supported in Glimmer and unnecessary

Error message

Using "./" is not supported in Glimmer and unnecessary

What it means

Error "Using "./" is not supported in Glimmer and unnecessary" thrown in emberjs/ember.js.

Source

Thrown at packages/@glimmer/syntax/lib/parser/handlebars-node-visitors.ts:399

  DecoratorBlock(decoratorBlock: HBS.DecoratorBlock): never {
    throw generateSyntaxError(
      `Handlebars decorator blocks are not supported`,
      this.source.spanFor(decoratorBlock.loc)
    );
  }

  SubExpression(sexpr: HBS.SubExpression): ASTv1.SubExpression {
    const { path, params, hash } = acceptCallNodes(this, sexpr);
    return b.sexpr({ path, params, hash, loc: this.source.spanFor(sexpr.loc) });
  }

  PathExpression(path: HBS.PathExpression): ASTv1.PathExpression {
    const { original } = path;
    let parts: string[];

    if (original.indexOf('/') !== -1) {
      if (original.slice(0, 2) === './') {
        throw generateSyntaxError(
          `Using "./" is not supported in Glimmer and unnecessary`,
          this.source.spanFor(path.loc)
        );
      }
      if (original.slice(0, 3) === '../') {
        throw generateSyntaxError(
          `Changing context using "../" is not supported in Glimmer`,
          this.source.spanFor(path.loc)
        );
      }
      if (original.indexOf('.') !== -1) {
        throw generateSyntaxError(
          `Mixing '.' and '/' in paths is not supported in Glimmer; use only '.' to separate property paths`,
          this.source.spanFor(path.loc)
        );
      }
      parts = [path.parts.join('/')];
    } else if (original === '.') {

View on GitHub (pinned to 26f97246a8)

When it happens

Trigger: Thrown at packages/@glimmer/syntax/lib/parser/handlebars-node-visitors.ts:399 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of emberjs/ember.js@26f97246a8 (2026-09-01). Data as JSON: /api/errors/a019acf43be1e6bf. Report an issue: GitHub.