269       throw new TypeError("groupby: attribute \"" + val + "\" resolved to undefined");  field
2197         throw new Error("Block \"" + name + "\" defined more than once.");  field
2489       throw new Error('template names must be a string: ' + name);  field
2649       throw new Error('no super block available for "' + name + '"');  field
2688       throw new Error('src must be a string or an object describing the source');  field
2725         throw err;  field
2899     throw this.error(msg, lineno, colno);  field
3649       throw this.error("unexpected token: " + tok.value, tok.lineno, tok.colno);  field
4094           throw new Error('Unexpected value while parsing: ' + tok);  field
4156           throw new Error('expected end of comment, got end of file');  field
4379     throw new Error('relative templates not support in the browser yet');  field
5095       throw er; // Unhandled 'error' event  field
5716     throw new lib.TemplateError('dictsort filter: You can only sort by either key or value');  field
6022       throw new TypeError("sort: attribute \"" + attr + "\" resolved to undefined");  field
6614     throw new Error('the "name" option is required when compiling a string');  field
6687     throw _prettifyError(name, false, err);  field