# Stuck in 'Building project...' when opening a project

**URL:** <https://forums.fusetools.com/t/stuck-in-building-project-when-opening-a-project/786>\
**Category:** Bug Reports\
**Created:** [January 1, 2018, 2:45pm UTC](https://forums.fusetools.com/t/stuck-in-building-project-when-opening-a-project/786 "2018-01-01T14:45:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kennan\_Fattah](https://avatars.discourse-cdn.com/v4/letter/k/e56c9b/32.png) [@Kennan\_Fattah](https://forums.fusetools.com/u/Kennan_Fattah)\
**Post date:** [January 1, 2018, 2:45pm UTC](https://forums.fusetools.com/t/stuck-in-building-project-when-opening-a-project/786/1 "2018-01-01T14:45:04Z")

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Hello,

I got stuck when opening my project, i had this issue 2 times today.

Fuse version:  
Fuse version 1.5.0 (build 15046)  
Copyright © 2017 Fusetools

OS:  
Windows 10 - 64bit

I think i do something with command ‘use clean’ before, and this happened to me.

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**Author:** ![Uldis](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/uldis/32/657_2.png) [@Uldis](https://forums.fusetools.com/u/Uldis)\
**Post date:** [January 2, 2018, 9:48am UTC](https://forums.fusetools.com/t/stuck-in-building-project-when-opening-a-project/786/2 "2018-01-02T09:48:12Z")

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Running `uno clean` means that the project needs to be rebuilt, and that can take some time. Depending on the hardware specs of your computer and the size/complexity of the project, that time can become quite long (we’ve seen more than 5 minutes build times occasionally).

Without further details, there’s not much else we can suggest.

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**Author:** ![Darrin](https://avatars.discourse-cdn.com/v4/letter/d/8e8cbc/32.png) [@Darrin](https://forums.fusetools.com/u/Darrin)\
**Post date:** [January 13, 2018, 2:45am UTC](https://forums.fusetools.com/t/stuck-in-building-project-when-opening-a-project/786/3 "2018-01-13T02:45:16Z")

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Kennan – I experienced this same issue. Ultimately, I discovered I had incorrect formatting in my .unoproject file. Unfortunately, I received no errors other than the project hanging in building state. Once I ran `uno clean`, I discovered the formatting issue and repaired it. I was then able to successfully clean the project and it proceeded to build and operate properly.