Title: Errors extracting zip file (new problem) Last modified: October 25, 2017 --- # Errors extracting zip file (new problem) * Resolved [johnwp413](https://wordpress.org/support/users/johnwp413/) * (@johnwp413) * [8 years, 7 months ago](https://wordpress.org/support/topic/errors-extracting-zip-file-new-problem/) * In 5 months I’ve made 5 duplicates of a live site for tweaking it locally/offline. The first 4 archives ranged from about 50 MB to 62 MB as the site progressed. The largest of the 4 was the most recent one, about 2 weeks ago. Today I wanted a new archive to work with because some very minor changes were made online including updates to the most recent WordPress version and a theme update. One more page was added to the website in that 2 weeks, but it isn’t a big load (one small image, not a lot of text). * Today I am creating the 5th archive following exactly the previous steps. For the first time I get warnings/notices during scan advising a size problem (over 250 MB uncompressed) and a unicode symbol problem. I excluded or filtered three files listed and continued to archive as a test. The resulting archive is a problem and it is nearly 140 MB in size (compressed). * The created zip file is not valid for any win-zip or 7-zip, etc. tool I’ve tried after getting the error message when running the installer script on my local machine. * I don’t know where to begin to figure out why in just a short period of time and with minor changes to the website I went from an easy routine with a 62 MB archive to a problem archive over double the size. Could the WordPress update have been that big of a load? Thanks. Viewing 3 replies - 1 through 3 (of 3 total) * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [8 years, 7 months ago](https://wordpress.org/support/topic/errors-extracting-zip-file-new-problem/#post-9620941) * Hey John, * It’s tough to tell here a few things you might look for: * 1. A sym-link was added (sometimes hosts add them for various reasons) 2. If you have another backup plugin that ran and created a large backup file. 3. Any other scheduled routine that might add data… * If you want to be pin-point exactly what changed then goto the wp-snapshots directory open the .json files for the packages you built and goto [https://www.diffchecker.com/](https://www.diffchecker.com/) and you can see how the packages differ that way you can be 100% sure. * Thread Starter [johnwp413](https://wordpress.org/support/users/johnwp413/) * (@johnwp413) * [8 years, 7 months ago](https://wordpress.org/support/topic/errors-extracting-zip-file-new-problem/#post-9620985) * Thanks for the speedy reply. * It worked after I did the following: - omitted the addon domain (which has always been there), which means I filtered the directory /home/originaldomain/public_html/addondomain.com (found out my client had added 2 big posts/pages to the other domain) - ran the archive scan again and only got warning for unicode symbols (again) and not for size - out of curiosity checked this newest archive with 7-zip and it was able to access - ran the installer script on my local machine and it worked this time * For what it’s worth the offending characters appear to somehow be a part of a plugin called Simple Cache. It was only used as a quick fix for something, so I may revert the site to perhaps a more advanced method to improve loading/caching. Although I selected the offending files before and rescanned, for some reason it didn’t work. * Is there any other cache that is either recommended or advised against for compatibility? I will probably advance the site to something like WP Super Cache or W3 Total Cache. It will just require a little more education for the users/client. * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [8 years, 7 months ago](https://wordpress.org/support/topic/errors-extracting-zip-file-new-problem/#post-9621605) * There really are not any recommendations for or against any. It is just recommended to always clear the cache before building… * Hope that helps~ Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘Errors extracting zip file (new problem)’ is closed to new replies. * ![](https://ps.w.org/duplicator/assets/icon-256x256.png?rev=2906985) * [Duplicator - Backups & Migration Plugin - Cloud Backups, Scheduled Backups, & More](https://wordpress.org/plugins/duplicator/) * [Frequently Asked Questions](https://wordpress.org/plugins/duplicator/#faq) * [Support Threads](https://wordpress.org/support/plugin/duplicator/) * [Active Topics](https://wordpress.org/support/plugin/duplicator/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/duplicator/unresolved/) * [Reviews](https://wordpress.org/support/plugin/duplicator/reviews/) * 3 replies * 2 participants * Last reply from: [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * Last activity: [8 years, 7 months ago](https://wordpress.org/support/topic/errors-extracting-zip-file-new-problem/#post-9621605) * Status: resolved