# iOS building problem **URL:** \ **Category:** Questions about Thunkable X\ **Tags:** ios, build\ **Created:** [July 6, 2020, 1:58pm UTC](https://community.thunkable.com/t/ios-building-problem/659950 "2020-07-06T13:58:02Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![label1.visible-true](https://avatars.discourse-cdn.com/v4/letter/l/ec9cab/32.png) [@label1.visible-true](https://community.thunkable.com/u/label1.visible-true)\ **Post date:** [July 6, 2020, 1:58pm UTC](https://community.thunkable.com/t/ios-building-problem/659950/1 "2020-07-06T13:58:02Z")
hello there, I just click the build iOS app button 4 hours ago, and no email was sent to me. After a while, I figure out that the icon has to be upload in assets too, so I did it. But it says the app is still building. What causes this? ---
**Author:** ![Michael\_Rogulla](https://avatars.discourse-cdn.com/v4/letter/m/ba8739/32.png) [@Michael\_Rogulla](https://community.thunkable.com/u/Michael_Rogulla)\ **Post date:** [July 6, 2020, 4:43pm UTC](https://community.thunkable.com/t/ios-building-problem/659950/2 "2020-07-06T16:43:16Z")
Hi @label1.visible-true, I had the same problem yesterday: I clicked on “Download iOS app”, which takes normally no longer than 20…30 minutes to build. After several **hours** with no reply I clicked on “Download…” again which gave me an error “You are not allowed to download more than one app. Your app is being build”. I wrote an email to thunkable support, with a nice but useless reply. This morning the download finally came. Today the time for a fresh iOS download is back to normal. I don’t know if the support had fixed anything, my feeling is, that there must have been a lock or a compiling error which I am not able to solve. My recommendation: speak with the support. ---
**Author:** ![mainguyenngoc1102qbi](https://avatars.discourse-cdn.com/v4/letter/m/e68b1a/32.png) [@mainguyenngoc1102qbi](https://community.thunkable.com/u/mainguyenngoc1102qbi)\ **Post date:** [July 6, 2020, 7:29pm UTC](https://community.thunkable.com/t/ios-building-problem/659950/3 "2020-07-06T19:29:06Z")
Hello. 1 app you are building on a beta is only downloaded once a day on your phone. IOS or Adroi also. If project 1 you have downloaded on your phone successfully, when you create project 2 and want to download on phone, consider your project 1 on the phone will be lost. ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [November 8, 2024, 11:25am UTC](https://community.thunkable.com/t/ios-building-problem/659950/4 "2024-11-08T11:25:05Z")