多谢zbyufeifei指点。
When connecting to Quality Center 9.0 from previous version of testing tools (WinRunner 8.2, QuickTest Professional 8.2.1, LoadRunner 8.0 Athena, or earlier), the “Failed create list of projects” error message displays. This is due to the new login method introduced in Quality Center 9.0.
Workaround: In the Site Configuration tab in Site Administration, add the parameter BACKWARD_SUPPORT_ALL_DOMAINS_PROJECTS and set its value to “Y”.