# Error When Building App
**URL:** https://community.thunkable.com/t/error-when-building-app/501441
**Category:** Questions about Thunkable X
**Created:** [March 6, 2020, 9:19am UTC](https://community.thunkable.com/t/error-when-building-app/501441 "2020-03-06T09:19:34Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@sr7331nseh](https://community.thunkable.com/u/sr7331nseh)
#### Post date: [March 6, 2020, 9:19am UTC](https://community.thunkable.com/t/error-when-building-app/501441/1 "2020-03-06T09:19:34Z")
Hello,
My name is Sid, and I recently made a beginner app. I downloaded it, so I could test it, and I received an email that told me that there was an error when making the app. The details are below -
Command failed: cd _ **/thunkableCompanionTemp/thunkableCompanion\_802647c1-e5e1-4070-b990-32456a711bc9/ios && bundle exec fastlane beta app\_identifier:‘com.thunkable.testapp1’ app\_name:“The Everything Translator” xcode\_project\_path:'** _/Documents/thunkable-for-ios/thunkableCompanionTemp/thunkableCompanion\_802647c1-e5e1-4070-b990-32456a711bc9/ios/thunkablecompanion.xcodeproj’ [31m [!] Error building the application - see the log above [0m
I do not quite know what the error is, whether its in my code or a host problem, or what I can do to successfully download my app. Could you help me?
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### Author:  [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)
#### Post date: [March 6, 2020, 11:32am UTC](https://community.thunkable.com/t/error-when-building-app/501441/2 "2020-03-06T11:32:33Z")
Hey @sr7331nseh welcome to the community! 👋
I’m not 100% sure from that error message what that root cause is (but thanks for sharing it with us!)
Can you send PMs here? If so, will you shoot me on a copy of your project and we’ll take a closer look for you. Thanks
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### Author:  [@ioannis](https://community.thunkable.com/u/ioannis)
#### Post date: [November 8, 2024, 11:40am UTC](https://community.thunkable.com/t/error-when-building-app/501441/3 "2024-11-08T11:40:33Z")