CTRL + left mouse button or find declaration cannot locate the source file

In DelphiCodeIn the editor, you can use the CTRL + left mouse button to jump to the definition of the class under the mouse. But today, a strange problem is found that the class of the ehlib component cannot jump (including the PAS file in uses ), the same is true for the re-installation. After verification, we found that some components can be redirected, but some cannot, such as ehlib and reportmachine, but fastreport and some components can be viewed in Delphi IDE for half a day, I hope you can give me some advice!

I have already added the library path. All the components used have the source code. You can open and view them, and the components can be used normally.

Generally, you cannot jump to "build all" first. If compilation is successful, you can jump...

Today, we also encountered this problem. Even the units referenced in the package unit cannot find declaration. This third-party control is just a projectgroup1, so we can "build all projects ". finally, the jump function is implemented. however, the project is saved. DOF, engineering. CFG, project. RES is read-only. I wonder if it is caused by this reason.