I got into trouble at work!
The design I made before, I want to open it again, and design the toolbox into the original folder. the screenshots of the path I designed are as follows）
（When I have finished saving, I will open the top-level assembly, and sometimes there will be errors reported by toolbox with yellow exclamation point! Toolbox parts are compressed, as shown in the screenshot:）
My stupid way now is to enter the upper-level assembly of toolbox and decompress them one by one, so it takes a long time to finish such a large-scale assembly!
Hopefully, with the help of everyone, this problem can be solved quickly.