gst error

gistfile1.txt

devin@kodiak-dev:~/projects/gst/examples$ go run live_webm.go 
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x40b23c]

goroutine 1 [running]:
main.NewWebM(0x180, 0xd8, 0x19, 0x0)
	/home/devin/projects/gst/examples/live_webm.go:107 +0x93c
main.main()
	/home/devin/projects/gst/examples/live_webm.go:145 +0x69

goroutine 2 [runnable]:
runtime.forcegchelper()
	/usr/local/go/src/runtime/proc.go:90
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:2232 +0x1

goroutine 3 [runnable]:
runtime.bgsweep()
	/usr/local/go/src/runtime/mgc0.go:82
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:2232 +0x1

goroutine 4 [runnable]:
runtime.runfinq()
	/usr/local/go/src/runtime/malloc.go:712
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:2232 +0x1

goroutine 5 [runnable]:
github.com/ziutek/glib.callbackLoop()
	/home/devin/go/src/github.com/ziutek/glib/object.go:415
created by github.com/ziutek/glib.init·1
	/home/devin/go/src/github.com/ziutek/glib/object.go:423 +0x25

goroutine 17 [syscall, locked to thread]:
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:2232 +0x1
exit status 2

gistfile2.txt

devin@kodiak-dev:~/projects/gst/examples$ go run simple.go 
can't make element:  videotestsrc
exit status 1