I am posting this after reading many similar posts on here regarding this issue and none of the solutions that worked for other people not working...

* **Xcode Version 8.3.3 (8E3004b)**
* **Swift 3.1**

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Things I tried

* Deleting Derived Data folder
* Deleting Workspace File
* Cleaning Build Folder
* Cleaning Build
* Reinstalled Xcode (after complete removal)

I also looked for Swift Issues:

* Removed all concatenating strings
* Cleaned up Swift arrays and dictionaries
* Added Whole module optimizations

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This all started happening after last Xcode update of 8.3.**3**. My project was compiling within seconds and now I have to wait at least 15 mins for it to index, then 5 minutes to compile after everything I change even something small in code.

When Building, it get stuck in "**Compiling Swift source files**". Is there way for me to look in to where it is actually getting stuck?

BIG UPDATE
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I tried pretty much everything. Read every article, post, ect. NOTHING worked. My project was created right after 10.0.

**Solution**
Creating a new project and copying each file worked! It used to take 8-9 minuted to build. Now less than 2 seconds!