ODataMetadata 元数据初始加载失败

Question

I'm trying to read an oData but I'm getting this error and I don't understand why:

The function which I invoke is the below:

The error Assertion fails: No metadata loaded! is because of first line of function. As shown in the image below, metadata are retrieved and the status of request is 200:

EDIT Since sap.ui.model.odata.ODataModel is deprecated, I've replaced it with sap.ui.model.odata.v2.ODataModel("/catalog/"); . Now there are these two errors:

Answer 1

As suggest into the comments, the problem is the oData version. I've fixed the issue using sap.ui.model.odata.v4.ODataModel . In the fourth version of oData the right way to perform crud requests is by using bindings . I've found this tutorial very useful in order to understand how they work.