Getting error while publishing UiPath packages

Hi Team,

We are getting frequent UiPath updates from last week and getting error while publishing packages in UiPath studio after every update. We used to re-install UiPath and this error used to get resolved.

Today I have updated to UiPath Studio 2026.0.182 STS. I am again getting same error while publishing packages in UiPath. Have tried re-installing UiPath Studio multiple times. PFB error details. Kindly guide us to resolve this error.

The assembly compilation returned the following errors:

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(91,41): error CS1525: Invalid expression term ‘)’*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(91,42): error CS1003: Syntax error, ‘,’ expected*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(16,16): error CS7003: Unexpected use of an unbound generic name*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(40,16): error CS7003: Unexpected use of an unbound generic name*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(28,107): error CS7003: Unexpected use of an unbound generic name*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(28,54): error CS7003: Unexpected use of an unbound generic name*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(28,137): error CS7003: Unexpected use of an unbound generic name*

** C:\Users\sapjinda\scope_ui_path_oct.local\install\PerformanceTestingBootloaderWorkflow+BootloaderActivity.cs(69,29): error CS0815: Cannot assign void to an implicitly-typed variable*

1 Like

Hi @sapnajindal20

Upgrade or downgrade the UiPath.Testing.Activities and Performance Testing packages to a stable version, then delete the project’s .local, .packages, bin, and obj folders along with the related UiPath testing packages from the .nuget cache.

Cheers

Hello @sapnajindal20
The errors in BootloaderActivity.cs occurred due to:

  • Syntax errors: Extra or missing parentheses or commas
  • Unbound generics: Generic types missing.

Please try debugging the process again. If there are no warnings or errors, it should publish successfully. If you encounter any errors while debugging, please let us know.

Hi @sapnajindal20

Please refer these threads for your issue, hope it helps you

CodedWorkflow throwing CS0246 and SYSLIB0046 when attempting to publish - Help / Studio - UiPath Community Forum

Why we need Codedworkflows.cs file - Help / Studio - UiPath Community Forum

it did not work, i did not find bin and packages folders though, had cleared everything in .local and .objects folders

this .cs file we do not create, it gets created automatically once we try to publish the packages.

@sapnajindal20

Welcome to the community

STS version generally can be little unstable and might get frequent updates or changes. Try using LTS version and check if the issue persists

also can you specify what compatibility it is and are there any coded workflows or only low code?

also is this happening with all packages or any limited packages only…As specifically performance testing modules show errors so if testing modules are not used try to remove the package and the related files from the folders and then try to publish

cheers

hi, @sapnajindal20 !

thanks for reporting it! we are aware of the issue and working on a fix for 2026.0.182 , please use 25.10.3 in the meantime.

thanks!

1 Like

how can I install the mentioned version? pls guide, UIPathPlatform installer automatically installs 2026.0.182 STS. I have installed from below link -

Moreover, it keeps on giving notifications for updates n many times automatically installs updates

We are creating functional test scripts using UiPath community version and have coded workflows.

Here they have suggested to change installation directory, I tried that as well, but issue is not resolved

@sapnajindal20

got it

and for getting other versions you can go to orchestartor click on ? on right top and go to download to download the lts version

if any other versions are needed you can find there or on the customer portal

cheers