# \[โœ”๏ธŽ FIXED\] Product development app doesn't get installed **URL:** \ **Category:** Bugs & Issues\ **Created:** [April 18, 2019, 2:50pm UTC](https://community.fibery.io/t/fixed-product-development-app-doesnt-get-installed/218 "2019-04-18T14:50:54Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Milenka](https://avatars.discourse-cdn.com/v4/letter/m/d78d45/32.png) [@Milenka](https://community.fibery.io/u/Milenka)\ **Post date:** [April 18, 2019, 2:50pm UTC](https://community.fibery.io/t/fixed-product-development-app-doesnt-get-installed/218/1 "2019-04-18T14:50:54Z")
Hi! Iโ€™m unable to install the Product development app. It gives the following error ![uAwsOGARQ5Q](https://us1.discourse-cdn.com/flex020/uploads/fibery/original/2X/5/547542c3b6b96dfc965130d90162724beb7eac04.jpeg) And the error message doesnโ€™t disappear even if I go to another page. The last time I installed this app I tried to delete all the types and it started glitching that time also. So i just removed the whole app. Could these things be connected? ---
**Author:** ![shotkin](https://sea2.discourse-cdn.com/flex020/user_avatar/community.fibery.io/shotkin/32/12_2.png) [@shotkin](https://community.fibery.io/u/shotkin)\ **Post date:** [April 18, 2019, 3:18pm UTC](https://community.fibery.io/t/fixed-product-development-app-doesnt-get-installed/218/2 "2019-04-18T15:18:41Z")
Hi! Yes, this is a result of app types deleting. Some formulas was not deleted. As a workaround you can delete formula in Formulas board. Andrew ---
**Author:** ![Milenka](https://avatars.discourse-cdn.com/v4/letter/m/d78d45/32.png) [@Milenka](https://community.fibery.io/u/Milenka)\ **Post date:** [April 19, 2019, 12:33pm UTC](https://community.fibery.io/t/fixed-product-development-app-doesnt-get-installed/218/3 "2019-04-19T12:33:33Z")
Deleting a formula worked! Thank you a lot ๐Ÿ‘๐Ÿ‘๐Ÿ‘