# Crash on launch and/or preview... 7.5.1 **URL:** \ **Category:** RapidWeaver Classic\ **Created:** [September 29, 2017, 5:37am UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457 "2017-09-29T05:37:03Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Macsterguy](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/macsterguy/32/667_2.png) [@Macsterguy](https://forums.realmacsoftware.com/u/Macsterguy)\ **Post date:** [September 29, 2017, 5:37am UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/1 "2017-09-29T05:37:03Z")
Sierra 10.12.6 | RapidWeaver 7.5.1… I am crashing as soon as I launch a project. Occasionally I am able to launch a project only to crash as soon as I preview a page… This is as buggy a build as I have ever seen… Any Ideas? ---
**Author:** ![instacks](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/instacks/32/23339_2.png) [@instacks](https://forums.realmacsoftware.com/u/instacks)\ **Post date:** [September 29, 2017, 6:12am UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/2 "2017-09-29T06:12:25Z")
Maybe related to this? > [@Error message in RW 7.5.1 when adding pages](http://forums.realmacsoftware.com/t/error-message-in-rw-7-5-1-when-adding-pages/16399/8): > > Hi Dan, thanks for getting back to me with this issue. Yes, it’s been happening with a blank project, when I add pages. So I’m sure it wouldn’t have helped a lot if I uploaded an empty project here. wink But the good news: the problem is solved! slight_smile The key to the solution was your hint with changing the theme. I had set „Foundation“ as the default theme for months (or years?) now. But when I changed the default theme to „Alpha“, then quit RW and restarted it, the issue was gone. … ---
**Author:** ![Macsterguy](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/macsterguy/32/667_2.png) [@Macsterguy](https://forums.realmacsoftware.com/u/Macsterguy)\ **Post date:** [September 29, 2017, 6:47am UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/3 "2017-09-29T06:47:00Z")
Thanks for the tip Jannis. Unfortunately it I=didn’t work for me ☹ If the project even opens without having to force quitting, I just get pinwheels when hitting the preview button until I get tired of waiting… (5-10 min…). Then it will work once… Out of 10 attempts. ---
**Author:** ![Macsterguy](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/macsterguy/32/667_2.png) [@Macsterguy](https://forums.realmacsoftware.com/u/Macsterguy)\ **Post date:** [September 29, 2017, 5:42pm UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/4 "2017-09-29T17:42:38Z")
Crash on Preview… Anyone? ---
**Author:** ![teefers](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/teefers/32/8173_2.png) [@teefers](https://forums.realmacsoftware.com/u/teefers)\ **Post date:** [September 29, 2017, 7:02pm UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/5 "2017-09-29T19:02:28Z")
Not having that problem. Have you tried with a new project? If it happens on every project, might wish to try to reinstall RW. ---
**Author:** ![garageshop](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/garageshop/32/366_2.png) [@garageshop](https://forums.realmacsoftware.com/u/garageshop)\ **Post date:** [September 29, 2017, 11:15pm UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/6 "2017-09-29T23:15:48Z")
Seems to be working ok on my machine. Good luck. Blessings, —Mark ---
**Author:** ![Macsterguy](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/macsterguy/32/667_2.png) [@Macsterguy](https://forums.realmacsoftware.com/u/Macsterguy)\ **Post date:** [October 10, 2017, 11:41pm UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/7 "2017-10-10T23:41:27Z")
I need help with this Weavers… I sent a support email but I thought I would post here too… Support did ask me to "try going to Preview” "from another page” (From Dan). - I tried that, no help… I HAVE NOTICED something that may help you help me (because I am at a loss and I need help) - Anytime I open my project, I can… - Anytime I click Preview = RW HARD crash - Anytime I open my project | AND DON’T HIT PREVIEW | Make a change and publish | No matter how small a change and publish | EVERYTHING WORKS PERFECTLY Including Preview! Thanks in advance for anything, Chris Jones > **[Medical X-Ray and Digital Equipment Specialists | Jones X-Ray](https://www.jonesxray.com/)** > > Medical X-Ray Digital Equipment Specialists | Jones X-Ray ---
**Author:** ![dan](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/dan/32/28516_2.png) [@dan](https://forums.realmacsoftware.com/u/dan)\ **Post date:** [October 11, 2017, 8:40am UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/8 "2017-10-11T08:40:23Z")
Hi Macsterguy, Can you send me over your RapidWeaver Project file? My email is [dan@realmacsoftware.com](mailto:dan@realmacsoftware.com) We’re still looking into this and if it’s an RW issue we’ll get it fixed ASAP for RapidWeavre 7.5.2 Cheers Dan ---
**Author:** ![dan](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/dan/32/28516_2.png) [@dan](https://forums.realmacsoftware.com/u/dan)\ **Post date:** [October 12, 2017, 1:39pm UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/9 "2017-10-12T13:39:49Z")
Hey guys, Please try out the new beta of 7.5.2, this should fix the preview issue you’re seeing: [RapidWeaver 7.5.2 Beta 1 (18793b) - Fix for hang/crash on preview](http://forums.realmacsoftware.com/t/rapidweaver-7-5-2-beta-1-18793b-fix-for-hang-crash-on-preview/16675) Cheers Dan ---
**Author:** ![Macsterguy](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/macsterguy/32/667_2.png) [@Macsterguy](https://forums.realmacsoftware.com/u/Macsterguy)\ **Post date:** [October 12, 2017, 7:06pm UTC](https://forums.realmacsoftware.com/t/crash-on-launch-and-or-preview-7-5-1/16457/10 "2017-10-12T19:06:58Z")
Dan, Aaron, Weavers out there… Would there be anything special I need to do since I am using the Mac App Store version on two Macs after I download the beta 7.5.2? In other words, will the Mac App Store recognize the beta? Do I replace the current Mac App Store version or keep both? What about a license?