Unable to evaluate the expression Cannot find source class for java.util.List

Question

I response this error when get JSON data by retrofit.

List<NewLicense> result = null;
Call<List<NewLicense>> serviceResult = ShahrdariApp.getShahrdariWebService().getLicenses(Configuration.getInstance().getString(SharedPrefs.MAC_ADDRESS), id);

try {
    Response<List<NewLicense>> response = serviceResult.execute();
    result = response.body();
    Log.d("responseCode", String.valueOf(response.code()) );

} catch (Exception e) {
    exceptionHandling(e);
    Log.d("responseCode", String.valueOf(e.getMessage()) );
}
return result;

Answer 1

Simply restarting the IDE via File -> Invalidate caches can often solve this issue.