重新加载一个新库以后guarding按钮失效了怎么处理
*WARNING* (LE-104638):Create Guard Ring: The Create Guard Ring form cannot be launched because no fluid guard ring
device masters exist in the technology file. Fluid guard ring device masters
need to be installed as technology file devices classes before they can be
instantiated in the design. Use the Install Guard Ring form to install fluid
guard rings. To open the Install Guard Ring form, click Guard Ring on the
Technology Tool Box.