Based on a quick tutorial from ?Parameter Jasper Report , i'm trying to make a date range value as paramete to Jasper Report using Jaspersoft iReport Designer 5.6.0 as attached in iReport Designer DATERANGE.txt with Parameter : 
and Custom Header :
<form action="" method="GET">
<div>
<label>date1</label><input type="date" name="date1" value="#requestParam.date1#"/>
</div>
<div>
<label>date2</label><input type="date" name="date2" value="#requestParam.date2#"/>
</div>
<div>
<input type="submit" name="submit" value="Submit"/>
</div>
</form>
but resulted an error message :
...
I hope someone can help me about this case, thank you...
Note :
c_Tgl stored in format : yyyy-MM-dd