discourse/discourse · error · BlockError

${typeError.message}

Error message

${typeError.message}

What it means

Error "${typeError.message}" thrown in discourse/discourse.

Source

Thrown at frontend/discourse/app/lib/blocks/-internals/validation/args.ts:1121

      );
    }
  }

  for (const [argName, argDef] of Object.entries(schema)) {
    const value = providedArgs[argName];

    // 2. Check required args
    if (argDef.required && value === undefined) {
      throw new BlockError(`missing required ${pathPrefix}.${argName}.`, {
        path: `${pathPrefix}.${argName}`,
      });
    }

    // 3. Validate type if value is provided
    if (value !== undefined) {
      const typeError = validateArgValue(value, argDef, argName, options);
      if (typeError) {
        throw new BlockError(typeError.message, {
          path: `${pathPrefix}.${typeError.path}`,
        });
      }
    }
  }
}

View on GitHub (pinned to 1b2d7253e8)

When it happens

Trigger: Thrown at frontend/discourse/app/lib/blocks/-internals/validation/args.ts:1121 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of discourse/discourse@1b2d7253e8 (2026-08-26). Data as JSON: /api/errors/227fc649e9135eb2. Report an issue: GitHub.