When I use vscode, Some classes cannot be compiled, while others can .it will report the following error：

What should I do?

There is a error when I try to use VSCODE to connect to my Ensemble Server. What's wrong with me？How can I Configure this /api/atelier web application

There will be serious errors and garbled code when I use the Data Migration to connect to MySQL through JAVA gateway. In fact , there are always many problems when I import data to the Caché database.