can't install in Claude Code

[nomie7]

its giving this error

                                                                                                                                                                                                                   
 Error: Failed to install: EXDEV: cross-device link not permitted, rename '/Volumes/External/dev/.claude/plugins/cache/interface-design' ->                                                                        
 '/var/folders/vt/1p_1jjg129x_8gwbqk1rmyv80000gp/T/claude-plugin-temp-1771100251567'