> For the complete documentation index, see [llms.txt](https://giantgrey.gitbook.io/flowreactor/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://giantgrey.gitbook.io/flowreactor/in-depth/assembly-defintion.md).
# Assembly Defintion
{% hint style="info" %}
It is possible to add the FlowReactor folder into it’s own assembly definition, but because of third-party addons dependencies like Databox and DOTween you’ll have to create the assembly defintion by yourself. Depending on if you are using Databox and/or DOTween.
{% endhint %}
### **Assembly definition setup without addons**
if you don’t use any of the FlowReactor addons (Databox or DOTween) simply follow these steps:
1. Open the FlowReactor folder in your project view.
2. Right click in the project view and select **Create -> Assembly Definition**
3. Name it to FlowReactor and select the newly created assembly definition.
4. You will now have to add the Odin serializer asmdef file to the assembly defintion references. Click on the “+”
5. Navigate to **FlowReactor / Core / Runtime / Data / FlowReactor.OdinSerializer**
6. Drag the asmdef file “**FlowReactor.OdinSerializer**” to the reference field of the FlowReactor asmdef file.
7. Click **apply**
### **Assembly definition setup with Databox**
Please follow the above steps to create the FlowReactor assembly definition.\
Databox comes with an assembly definition by default. If you are using the FlowReactor – Databox addon you simply have to add the Databox assembly definition located in the Databox root folder to the FlowReactor assembly definition references.
### **Assembly definition setup with DOTween**
DOTween has it’s own setup window where you can automatically create the correct assembly definition setup for DOTween.
1. In the Unity editor select: **Tools / Demigiant / DOTween Utility Panel**
2. In the utility window select “create asmdef files”
3. After the files have been created, select the FlowReactor asmdef file and add the **DOTween.Modules** asmdef (Located at: **DOTween / Modules**) to the FlowReactor assembly definition references.
4. Click apply