# System.Activities error while running the flowchart

**URL:** <https://forum.uipath.com/t/system-activities-error-while-running-the-flowchart/669954>\
**Category:** Studio\
**Tags:** dotnet, uipathsystemactivities, activities-panel, framework, dotnet-framework, question, studio, activities\
**Created:** [October 30, 2023, 5:08pm UTC](https://forum.uipath.com/t/system-activities-error-while-running-the-flowchart/669954 "2023-10-30T17:08:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![confuse\_coder](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/confuse_coder/32/114835_2.png) [@confuse\_coder](https://forum.uipath.com/u/confuse_coder)\
**Post date:** [October 30, 2023, 5:08pm UTC](https://forum.uipath.com/t/system-activities-error-while-running-the-flowchart/669954/1 "2023-10-30T17:08:08Z")

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Hi, I’m **getting bad Image format exception which is saying could not load file or assembly System.activities** while running the flowchart. Please find the SS of error:

 ![image](https://global.discourse-cdn.com/uipath/original/4X/6/7/1/671e7d16438c42a6931701d404f077c5fddec072.png)

I have installed .netFramework version- 4.8  
UiPath version - 2023.10.0

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<div class="post-metadata">

**Author:** ![Dilli\_Reddy](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/dilli_reddy/32/495587_2.png) [@Dilli\_Reddy](https://forum.uipath.com/u/Dilli_Reddy)\
**Post date:** [October 30, 2023, 5:12pm UTC](https://forum.uipath.com/t/system-activities-error-while-running-the-flowchart/669954/3 "2023-10-30T17:12:52Z")

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@confuse_coder

Follow this Steps:

-Ensure that the target platform in your UiPath project settings matches your system’s architecture (x86 or x64). Go to Project Settings by right-clicking on your project in UiPath Studio and selecting “Settings.”  
-Make sure that your UiPath project is set to target the correct .NET Framework version. In your case, .NET Framework 4.8 is compatible with UiPath 2023.10.0.  
-Verify that the version of the System.Activities assembly used in your project is compatible with the .NET Framework and UiPath version you are using. Ensure that you are using the appropriate version of this assembly.  
-Check if there is a mismatch between the bitness of your .NET Framework (x86 or x64) and the bitness of UiPath. Ensure that they are both either 32-bit or 64-bit.  
-Ensure that your Windows operating system is running a version (32-bit or 64-bit) that matches your UiPath version and project settings.

Cheers…!