jquery - spservices raising an error as soon as I try to use functions -

i'm trying use spservices current user accesses page. problem there "syntax error, unrecognized expression" when try that.

the code throws error is:

var thisuseraccount = $().spservices.spgetcurrentuser({     fieldname: "name",     debug: false }); 

the same error occurs when following

alert($().spservices.spgetcurrentuser()); 

i'm using: jquery.spservices-2014.01.min

when use developer tools ie , put in watchpoints see spservices exists , spgetcurrentuser exists. if use:

alert($().spservices.spgetcurrentuser); 

i whole prototype spgetcurrentuser printed alert.

so not undefined. question though doing wrong there can't use function (the error message shows nothing else aside unrecognized expression , doesnt go details expression in question is).

edit: small detail var thissite = $().spservices.spgetcurrentsite(); works in not throw errors when use alert(thissite) shows empty string.

and bit of testing around saw that:

var lastid = $().spservices.spgetlastitemid({      listname: "mylistname" });  

throws same error spgetcurrentuser (at least if give no useraccount data.....if useraccount data given no error thrown).