从属性文件中传递黄瓜特征文件的数据表中的值

我想从属性文件中传递特征文件的数据表中的变量值 . 这是我写的，但它给了我错误..下面的完整堆栈跟踪

org.openqa.selenium.WebDriverException：未知错误：keys应该是一个字符串

featurefile

Scenario: Capture a user and check user details

Given Opens the userdetails, searches for 'name' and clicks on 'enter'
When Enters the following into the various fields 'Fname', 'Lname', 'Mname', 'Age' and  'Language'
  |fname1|lname1|mname1|age1| language1|
  |fname |lname|mname|age|language|

Step Definition :

@When("Enters the following into the various fields '(.*)', '(.*)', '(.*)', '(.*)', '(.*)', '(.*)' and '(.*)'")
public void enters_the_following_into_the_various_fields_and(String fname1, String lname1, String mname1, String age1, String language1, DataTable dataTable) throws IOException {
    somepageclass = new somepageclass(driver);
    somepageclass.enterUserDetails(fname1, lname1, mname1, age1, language1);

    Properties file :

    fname = Ricky
    lname = Peters
    mname = M
    age = 45
    language = English

    Page methods :

    public void enterUserDetails(String fname1, String lname1, String mname1, String age1, String language1) throws IOException {
    element.sendKeys(loadData().getProperty(fname1));  //loaddata() is reading the property file} 

    Stack Trace :
org.openqa.selenium.WebDriverException: unknown error: keys should be a string

（会话信息：chrome = 69.0.3497.100）（驱动程序信息：chromedriver = 2.42.591088（7b2b2dca23cca0862f674758c9a3933e685c27d5），platform = Windows NT 10.0.16299 x86_64）（警告：服务器未提供任何堆栈跟踪信息）命令持续时间或超时：0毫秒构建信息：版本：'3.14.0'，修订版：'aacccce0'，时间：'2018-08-02T20：19：58.91Z'系统信息：主机：'BNEPC9455'，ip：'172.28.2.6'，os .name：'Windows 8.1'，os.arch：'amd64'，os.version：'6.3'，java.version：'1.8.0_45'驱动程序信息：org.openqa.selenium.chrome.ChromeDriver功能{acceptInsecureCerts：false ，acceptSslCerts：false，applicationCacheEnabled：false，browserConnectionEnabled：false，browserName：chrome，chrome：{chromedriverVersion：2.42.591088（7b2b2dca23cca0 ...，userDataDir：C：\ Users \ Bankimp \ AppData \ Lo ...}，cssSelectorsEnabled： true，databaseEnabled：false，goog：chromeOptions：{debuggerAddress：localhost：65524}，handlesAlerts：true，hasTouchScreen：false，javascriptEnabled：true，locationContextEnabled： true，mobileEmulationEnabled：false，nativeEvents：true，networkConnectionEnabled：false，pageLoadStrategy：normal，platform：XP，platformName：XP，rotate：false，setWindowRect：true，takesHeapSnapshot：true，takesScreenshot：true，unexpectedAlertBehaviour :, unhandledPromptBehavior :, version： 69.0.3497.100，webStorageEnabled：true}会话ID：45d808a230024e3671c80a92214fb8c0

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at org.openqa.selenium.remote.http.JsonHttpResponseCodec.reconstructValue(JsonHttpResponseCodec.java:40)
at org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:80)
at org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:44)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:158)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:548)
at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:276)
at org.openqa.selenium.remote.RemoteWebElement.sendKeys(RemoteWebElement.java:100)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.openqa.selenium.support.pagefactory.internal.LocatingElementHandler.invoke(LocatingElementHandler.java:51)
at com.sun.proxy.$Proxy13.sendKeys(Unknown Source)