...
Run a DRC and correct any errors. Also make sure that your board has a board outline on the Keepout Layer.
https://jlcpcb.com/help/article/how-to-export-pcb-to-gerber-files-in-altium24
JLCPCB SMT Assembly Service
...
...
Run a DRC and correct any errors. Also make sure that your board has a board outline on the Keepout Layer.
https://jlcpcb.com/help/article/how-to-export-pcb-to-gerber-files-in-altium24
...