1.Recover eclipse project
Copy .project from other project(You can new a project first in eclipse. Then copy its “.project” file into our projects), remember to replace project name with current name in .project
2.Import the project into the Spring Tool Suite.
And now, you can import your project into the spring-tools-suite. Click the "Import..", and choose "Maven->Existing Maven Projects".
Then you click the "Next" button, and click the "Browse" button.
You will see the "Select Root Folder". Choose what you want then click "OK".
3. It's very important thing we should do the following steps:
Step 1: Right click the project named "Automation_Test_PA" and choose "Properties" label.
Step 2: Choose "Java Build Path"->"Projects", then click "Add" button. The "AutomationBase" project need to be included.