Xrm.Utility.openEntityForm passing lookup parameters not working

Hello Guys,

Unable to pass lookup parameter using openEntityForm . When I passed text field it is redirecting the entity and show me the value, but passing lookup parameter getting generic error .

I checked the lookup id , name value and also all field name are correct.

I followed below link and every blogs are written same , but could not help ,I am redirecting generic error.

https://msdn.microsoft.com/en-us/library/gg334375.aspx?f=255&MSPPError=-2147217396

var parameters = {};
parameters["poc_testlookupfield"] = "2888888E-94D6-E111-9B1D-00155D9D700B";
parameters["poc_testlookupfieldname"] = "Goutam Das";
parameters["poc_testlookupfieldtype"] = "contact";

parameters["poc_testtextfield"] = "test text";

// Open the window.
Xrm.Utility.openEntityForm("poc_testentity", null, parameters);

Any help will be appreciated.