hello, i'm sending the assembly file i'm working on in the attachment. the assembly includes solids and beams.

first, when i try to mesh, the following warning pops up.

"One or more joints lie inside solid, and cannot be bonded.

Model may not be stable."

second, some of the solid components fails to mesh when i right click to the mesh feature and select "create mesh"; however, i'm able to mesh them one by one after they fail. what is the reason for this? by examining the file i'm sending, can someone tell me what i'm doing wrong and the proper way to analyze?

my goal is: to analyze the stress of beams under the weight of 18 panels, and include the wind load in the future, if possible.