未捕获的错误：makeTransliteratable中的异常：无效的元素ID lang

Question

我使用以下js代码在django应用程序中将本地语言转换为英语。

<script type="text/javascript" src="http://www.google.com/jsapi"></script>

// Load the Google Transliteration API
google.load("elements", "1", {
    packages: "transliteration"
});

function onLoad() {
    var options = {
        sourceLanguage: 'en',
        destinationLanguage: ['ml'],
        shortcutKey: 'ctrl+m',
        transliterationEnabled: true
    };
    // Create an instance on TransliterationControl with the required options.

    var control =  new google.elements.transliteration.TransliterationControl(options);
    // Enable transliteration in the textfields with the given ids.    
    var ids = [ "lang", "langu", "language" ];
    control.makeTransliteratable(ids);

    // Show the transliteration control which can be used to toggle between
    // English and Hindi and also choose other destination language.
    // control.showControl('translControl');
}
google.setOnLoadCallback(onLoad);

控制台上的错误是

 Uncaught Error: Exception in makeTransliteratable: Invalid element id lang
    at Yy (transliteration.I.js:178)
    at Xy.Q.ij (transliteration.I.js:323)
    at onLoad ((index):551)

提前感谢您的帮助。