Submit reporting table error: object reference not set to an instance of an object.

What should I do if an error occurs in the title?

 

Check the following items:

1. Check whether the name space defined in the corresponding class of the reporting table is consistent with that defined in the Web service;

2. Check whether the items in the settings corresponding to the submit reporting table in data connection are normal. For example, it should be my: reportingtablename, not S1: reportingtablename. In this case, follow the solution mentioned in the previous blog;

 

 

3. The possible cause is that there are two points to note in the data connection settings:

A. When setting the corresponding element, the file or group should be in a similar format:/My: myfields/My: group1. Note: The next level is unavailable;

B. If you fail to use "text and child elements only" when setting the corresponding include, try another option: "XML subtree, including selected element"

 

 

Currently, the above three solutions can be basically solved.