loadrunner:回放报错

Jessica_Holly

各位大神些，初学loadrunner，就录制了一个LR自带的网站登录和退出。录制时没问题，但是回放就会报错（报an error has occurred），后面换成录制百度也报错，哪位知道怎么解决呢？多谢了。
代码如下：
Action()
{

/*Correlation comment - Do not change!  Original value='117036.027055488zAcAAtApztVzzzzHDzVcApctDif' Name ='userSession' Type ='ResponseBased'*/
    web_reg_save_param_regexp(
        "ParamName=userSession",
        "RegExp=name=\"userSession\"\\ value=\"(.*?)\"/>\\\n<table\\ border",
        SEARCH_FILTERS,
        "Scope=Body",
        "IgnoreRedirections=No",
        "RequestUrl=*/nav.pl*",
        LAST);

    web_url("index.htm",
        "URL=http://localhost:1080/WebTours/index.htm",
        "Resource=0",
        "RecContentType=text/html",
        "Referer=",
        "Snapshot=t1.inf",
        "Mode=HTML",
        LAST);

    lr_think_time(37);

    lr_start_transaction("login");

    web_submit_data("login.pl",
        "Action=http://localhost:1080/cgi-bin/login.pl",
        "Method=POST",
        "RecContentType=text/html",
        "Referer=http://localhost:1080/cgi-bin/nav.pl?in=home",
        "Snapshot=t2.inf",
        "Mode=HTML",
        ITEMDATA,
        "Name=userSession", "Value={userSession}", ENDITEM,
        "Name=username", "Value=jojo", ENDITEM,
        "Name=password", "Value=bean", ENDITEM,
        "Name=JSFormSubmit", "Value=on", ENDITEM,
        "Name=login.x", "Value=35", ENDITEM,
        "Name=login.y", "Value=6", ENDITEM,
        LAST);

    lr_end_transaction("login",LR_AUTO);

    lr_think_time(22);

    lr_start_transaction("logout");

    web_image("SignOff Button",
        "Alt=SignOff Button",
        "Snapshot=t3.inf",
        LAST);

    lr_end_transaction("logout",LR_AUTO);

    return 0;
}