unable create table

[divi s]

Hi,

Following is my create script for a table.when i run this code i am getting an error as

"Can't create table '.\itrendtest_dbo\test.frm' (errno: 150)"




CREATE TABLE `test` ( `filter_id` INT(10) NOT NULL auto_increment,
`user_id` INT(10) NOT NULL, `trend_plot_type_code` INT(10) NULL,
`y_param_name` VARCHAR(254) NULL, `x_param_name` VARCHAR(254) NULL,
`trend_from_date` DATETIME NULL, `trend_to_date` DATETIME NULL,
`last_duration` INT(10) NULL, `use_select` VARCHAR(15) NULL DEFAULT 'moving_window',
`event_type_code` INT(10) NULL, `gmt_last_updated` CHAR(29) NULL,
`last_upd_db_site` INT(10) NULL, `last_upd_db_id` INT(10) NULL,
`rstat_type_code` SMALLINT(5) NULL, PRIMARY KEY (`filter_id`),
CONSTRAINT `trend_plot_type_trend_filter_FK1` FOREIGN KEY `trend_plot_type_trend_filter_FK1` (`trend_plot_type_code`)
REFERENCES `itrendtest_dbo`.`trend_plot_type` (`trend_plot_type_code`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `users_trend_filter_FK1` FOREIGN KEY `users_trend_filter_FK1` (`user_id`)
REFERENCES `dbo`.`users` (`user_id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION
)
ENGINE = INNODB


can any one suggest why iam getting this error..

Thanks,
Divi.