Model 23 Part 15: Cannot inject @Test annotated Method [CreateLeadTest] with [class java.util.Hashtable]

when i am running batch test cases through testng, getting followin error:

Cannot inject @Test annotated Method [CreateLeadTest] with [class java.util.Hashtable]

[Utils] [ERROR] [Error] org.testng.TestNGException:
Cannot inject @Test annotated Method [CreateLeadTest] with [class java.util.Hashtable].
For more information on native dependency injection please refer to http://testng.org/doc/documentation-main.html#native-dependency-injection

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TEST NG XML:

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="SuiteName">

<test name="LoginTest" allow-return-values="true">
<classes>
<class name="com.ktest.zoho.project.testcases.LoginTest" ></class>
</classes>
</test>
<test name="LeadTest" allow-return-values="true">
<classes>
<class name="com.ktest.zoho.project.testcases.LeadTest" ></class>
</classes>
</test>

<test name="PotentialTest" allow-return-values="true">
<classes>
<class name="com.ktest.zoho.project.testcases.PotentialTest" ></class>
</classes>
</test>
</suite>

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@Test(priority=1,dataProvider = "getData")

public void CreateLeadTest (Hashtable<String,String> data)
{

test = rep.startTest("CreateLeadTest");
//Propinit();
OpnBrowser(data.get("Browser"));
navigate("Appurl");

CRMlogin("Acessesyourapp_xpath","AcessAppTxt");

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@DataProvider
public Object [][]getData()
{
super.Propinit(); //Initialize Property file

xls = new Xls_Reader(prop.getProperty("xlsPath"));

return DataUtil.getTestData(xls, testCaseName);

}

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