Lazarus in raspberry

[firman]

Hello, sorry about english.
My name firman, i am new in lazarus and raspberry. I will complete my final project on my university make a "Vein Viewer" using webcam, lazarus, and mini projector. I can access my usb cam using fswebcam. Everything OK. But I dont understand to  access my usb cam using lazarus. I trying to install 5dpo components but given error "Can't call the assembler, error -9". Error main.pp". Can anyone helpme to access usbcam using lazarus realtime like on TImage ?. I am using raspberry model B+ v1.2 and raspbian jessie lite. with lazarus ver 1.2.4+dfsg-2-1 .Thanks