panic: Youtube 播放列表的内存地址无效或为空指针解引用

panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x40 pc=0x778e2b] goroutine 1 [running]: GitHub.com/iawia002/lux/extractors.(*Data).FillUpStreamsData(...) GitHub.com/iawia002/lux/extractors.types.go:62 GitHub.com/iawia002/lux/extractors.Extract({0x7ffe4dc87f1c?, 0x2?}, {0x1, {0x0, 0x0}, 0x1, 0x0, 0xa, {0x0, 0x0}, ...}) GitHub.com/iawia002/lux/extractors/extractors.go:59 +0x4cb GitHub.com/iawia002/lux/app.download(0xc0001b9b00, {0x7ffe4dc87f1c, 0x58}) GitHub.com/iawia002/lux/app/app.go:275 +0x2e8 GitHub.com/iawia002/lux/app.New.func1(0xc0001b9b00) GitHub.com/iawia002/lux/app/app.go:252 +0x691 GitHub.com/urfave/cli/v2.(*App).RunContext(0xc0001d44e0, {0x1082b60, 0x19ca040}, {0xc000180050, 0x5, 0x5}) GitHub.com/urfave/cli/[email protected]/app.go:322 +0x928 GitHub.com/urfave/cli/v2.(*App).Run(0xc000084708?, {0xc000180050?, 0xc0000061c0?, 0x200000003?}) GitHub.com/urfave/cli/[email protected]/app.go:224 +0x2f main.main() GitHub.com/iawia002/lux/main.go:13 +0x39