Error in re-building vignettes:
  ...
pandoc.exe: Could not fetch https://github.com/paulgovan/BayesianNetwork/blob/master/inst/images/Simulation.PNG?raw=true
StatusCodeException (Status {statusCode = 503, statusMessage = "Connection timed out"}) [("Server","Varnish"),("Retry-After","0"),("Content-Type","text/html; charset=utf-8"),("Content-Length","454"),("Accept-Ranges","bytes"),("Date","Wed, 18 Jan 2017 09:02:05 GMT"),("Via","1.1 varnish"),("Connection","keep-alive"),("X-Served-By","cache-hhn1541-HHN"),("X-Cache","MISS"),("X-Cache-Hits","0"),("X-Timer","S1484730124.561781,VS0,VE1001"),("Access-Control-Allow-Origin","*"),("X-Fastly-Request-ID","2960b75360ac0763e214fe283396478b31f020ad"),("Expires","Wed, 18 Jan 2017 09:07:05 GMT"),("Vary","Authorization,Accept-Encoding"),("X-Response-Body-Start","\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"\n \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n<html>\n  <head>\n    <title>503 Connection timed out</title>\n  </head>\n  <body>\n    <h1>Error 503 Connection timed out</h1>\n    <p>Connection timed out</p>\n    <h3>Guru Mediation:</h3>\n    <p>Details: cache-hhn1530-HHN 1484730125 1947398171</p>\n    <hr>\n    <p>Varnish cache server</p>\n  </body>\n</html>\n"),("X-Request-URL","GET https://github.com:443/paulgovan/BayesianNetwork/blob/master/inst/images/Simulation.PNG?raw=true")] (CJ {expose = [Cookie {cookie_name = "logged_in", cookie_value = "no", cookie_expiry_time = 3016-05-21 00:00:00 UTC, cookie_domain = "github.com", cookie_path = "/", cookie_creation_time = 2017-01-18 09:02:04.314267 UTC, cookie_last_access_time = 2017-01-18 09:02:04.318267 UTC, cookie_persistent = False, cookie_host_only = False, cookie_secure_only = True, cookie_http_only = True},Cookie {cookie_name = "_gh_sess", cookie_value = "eyJzZXNzaW9uX2lkIjoiYjBmOWVlYjA1ZmNmZWYzNTg1NWI1ZWJkNjQyOGRkYTQiLCJzcHlfcmVwbyI6InBhdWxnb3Zhbi9CYXllc2lhbk5ldHdvcmsiLCJzcHlfcmVwb19hdCI6MTQ4NDczMDEyNH0%3D--5ae6b1be07e11f420fea849b96b68af91a15e403", cookie_expiry_time = 3016-05-21 00:00:00 UTC, cookie_domain = "github.com", cookie_path = "/", cookie_creation_time = 2017-01-18 09:02:04.314267 UTC, cookie_last_access_time = 2017-01-18 09:02:04.318267 UTC, cookie_persistent = False, cookie_host_only = True, cookie_secure_only = True, cookie_http_only = True}]})
Warning: running command '"D:/compiler/pandoc/pandoc" +RTS -K512m -RTS BayesianNetwork.utf8.md --to html --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output BayesianNetwork.html --smart --email-obfuscation none --self-contained --standalone --section-divs --template "d:\RCompile\CRANpkg\lib\3.3\rmarkdown\rmd\h\default.html" --highlight-style pygments --css "d:\RCompile\CRANpkg\lib\3.3\rmarkdown\rmarkdown\templates\html_vignette\resources\vignette.css" --mathjax --variable "mathjax-url:https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"' had status 67
Error: processing vignette 'BayesianNetwork.Rmd' failed with diagnostics:
pandoc document conversion failed with error 67
Execution halted