why can't i knit my r markdown

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why can't i knit my r markdown	1.84	1	3701	87	30
why	0.53	0.2	8307	58	3
can't	0.45	0.3	4840	41	5
i	1.04	0.1	1538	38	1
knit	1.55	0.1	5246	92	4
my	0.72	0.8	3609	26	2
r	1.17	1	6908	54	1
markdown	0.01	0.6	6893	69	8

Keyword	CPC	PCC	Volume	Score
why can't i knit my r markdown	0.13	0.4	3579	74
how to knit r markdown	0.42	0.7	1021	34
r markdown not knitting	0.73	0.8	9084	65
r markdown knit without running code	0.64	0.3	2056	78
knitting error in r markdown	0.78	0.3	1572	73
how to knit an r markdown file	0.21	0.4	3484	83
can't knit pdf r markdown	1.33	0.3	7172	38
r markdown knit to word	1.83	0.5	2082	95
r markdown won't knit to pdf	0.65	0.2	5410	96
r markdown not knitting to pdf	0.47	0.3	1642	30
knit to pdf r markdown not working	0.61	0.5	3664	86
how to knit r markdown to pdf	1.12	0.5	3076	65
knitting a file in rmarkdown	0.54	0.3	2446	89
rmarkdown knit to pdf error	0.32	0.5	542	12
knit not working in r	0.72	0.8	3610	33