<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt;" class="">Dear sir or madam,<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt;" class=""><o:p class=""> </o:p></div><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="background-color: white; border-collapse: collapse;"><tbody class=""><tr class=""><td valign="top" style="padding: 0in 11.25pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; text-align: center; vertical-align: baseline;" class=""><span style="font-size: 15pt; color: rgb(106, 115, 124); border: 1pt none windowtext; padding: 0in;" class=""><br class=""></span><br class=""></div></td><td valign="top" style="padding: 0in; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: inherit; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">I’m trying to use </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">quantmod</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""> package in R to get financial data from Yahoo. It works perfectly on my personal laptops (Mac and Win). But I cannot make it work on my working computer (Win7). Here's the error code:<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: inherit; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""><br class=""></span></div><pre style="margin: 0in 0in 0.0001pt; font-size: 10pt; background-color: rgb(239, 240, 241); vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; max-height: 600px; word-wrap: normal; overflow: auto;" class=""><font face="Helvetica" class=""><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">Error </span></span><span class="kwd"><span style="color: rgb(16, 16, 148); border: 1pt none windowtext; padding: 0in;" class="">in</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> curl</span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">::</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">curl_download</span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">(</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">cu</span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">,</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> tmp</span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">,</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> handle </span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">=</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> h</span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">)</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> </span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">:</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> </span><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""><o:p class=""></o:p></span></span></font></pre><pre style="margin: 0in 0in 0.0001pt; font-size: 10pt; background-color: rgb(239, 240, 241); vertical-align: baseline;" class=""><font face="Helvetica" class=""><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">SSL certificate problem</span></span><span class="pun"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class="">:</span></span><span class="pln"><span style="color: rgb(48, 51, 54); border: 1pt none windowtext; padding: 0in;" class=""> unable to get local issuer certificate</span></span><span style="color: rgb(57, 51, 24);" class=""><o:p class=""></o:p></span></font></pre><p style="margin-right: 0in; margin-left: 0in; font-size: inherit; margin-bottom: 12pt; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">I have tried to solve the problems in the following ways:<o:p class=""></o:p></span></p><div style="margin: 0in 0in 0.0001pt 22.5pt; font-size: 11pt; text-indent: -0.25in; vertical-align: baseline;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">1.<span style="font-size: 7pt; line-height: normal;" class=""> </span></span><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">install </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">httr</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""> package<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt 22.5pt; font-size: 11pt; text-indent: -0.25in; vertical-align: baseline;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">2.<span style="font-size: 7pt; line-height: normal;" class=""> </span></span><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">Delete </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">curl</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">, </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">quantmod</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""> and reinstall<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt 22.5pt; font-size: 11pt; text-indent: -0.25in; vertical-align: baseline;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">3.<span style="font-size: 7pt; line-height: normal;" class=""> </span></span><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">Update to the latest version of R, RStudio, </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">curl</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">, </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">httr</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">, </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">RCurl</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""> and </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">quantmod</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""><o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt 22.5pt; font-size: 11pt; text-indent: -0.25in; vertical-align: baseline;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">4.<span style="font-size: 7pt; line-height: normal;" class=""> </span></span><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">Install </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">openssl</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""> package<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt 22.5pt; font-size: 11pt; text-indent: -0.25in; vertical-align: baseline;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">5.<span style="font-size: 7pt; line-height: normal;" class=""> </span></span><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">Set </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">ssl_verifypeer = 0L</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""><o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt 22.5pt; font-size: 11pt; text-indent: -0.25in; vertical-align: baseline;" class=""><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class=""><br class=""></span></code></div><div style="margin: 0in 0in 0.0001pt; font-size: inherit; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">Unfortunately, none of the above works. I had this problem earlier when I was trying to download a file using R. At that time, I switched to </span><code class=""><span style="font-size: 10pt; color: rgb(36, 39, 41); border: 1pt none windowtext; padding: 0in; background-color: rgb(239, 240, 241);" class="">wget</span></code><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class=""> and made it work. But now I'm using an existing package and I have no idea how to solve this problem. BTW, fetch data from google finance works but Google only provide ~ 4000 records per request.<o:p class=""></o:p></span></div><p style="margin-right: 0in; margin-left: 0in; font-size: inherit; margin-bottom: 12pt; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">I think our company has some restrictions on SSL but I'm totally fine in accessing websites start with https://<o:p class=""></o:p></span></p><p style="margin-right: 0in; margin-left: 0in; font-size: inherit; margin-bottom: 12pt; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">I have spent a week to solve this problem but I didn't make any progress. Now, I'm wondering is that possible to fix it? Any ideas will be helpful!<o:p class=""></o:p></span></p><p style="margin-right: 0in; margin-left: 0in; font-size: inherit; margin-bottom: 12pt; vertical-align: baseline; font-style: inherit; font-variant-ligatures: inherit; font-variant-position: inherit; font-variant-caps: inherit; font-variant-numeric: inherit; font-variant-alternates: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit;" class=""><span style="font-size: 11.5pt; color: rgb(36, 39, 41);" class="">Thanks to all the contributors, have a great one!<o:p class=""></o:p></span></p></td></tr></tbody></table><div style="margin: 0in 0in 0.0001pt; font-size: 11pt;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt;" class="">Best,<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt;" class="">Arthur</div></body></html>