Error starting robotic enterprise framework project

Had to reinstall UIPath community because of a system issue. Reinstalled fine but now newer version 19.5.0 - When I try to open a new Robotic Enterprise Framework project it is showing unresolved activities and a bunch of errors in the output window ----

I am running 19.5.0 and opening a new REFramework project works as expected for me.

Can you click manage packages and confirm that the default packages are installed?
Mine starts with:
UiPath.Credentials.Activities 1.1.6479.13204
UiPath.Excel.Activities 2.6.0
UiPath.Mail.Activities 1.5.0
UiPath.System.Activities 19.5.0
UiPath.UIAutomation.Activities 19.5.0

You can simply Download and install the Packages then refresh the activities. And then reopen the workflow.

Yes that all looks the same as yours. I figured maybe the installation didn’t work correctly the first time so I uninstalled UI Path Studio and reinstalled but still same error


Install all the Packages that mentioned in the output pane as error.

Error shows, could not find type ‘ShouldStop’ in namespace, so you can install the Orchestrator activities to resolve that.

The Orchestrator activities are included with the UiPath.System.Activities package.

Are you able to see the Should Stop activity in the activities pane?

If no, then it was purely activities problem!

@ch34675 what does your project.json look like? Can you post that here?


“name”: “test20”,
“description”: “Robotic Enterprise Framework”,
“main”: “Main.xaml”,
“dependencies”: {
“UiPath.Credentials.Activities”: “[1.1.6479.13204]”,
“UiPath.Excel.Activities”: “[2.6.0]”,
“UiPath.Mail.Activities”: “[1.5.0]”,
“UiPath.System.Activities”: “[19.5.0]”,
“UiPath.UIAutomation.Activities”: “[19.5.0]”
“schemaVersion”: “3.2”,
“studioVersion”: “”,
“projectVersion”: “1.0.0”,
“runtimeOptions”: {
“autoDispose”: false,
“isPausable”: true,
“excludedLoggedData”: [
“projectType”: “Workflow”,
“libraryOptions”: {
“includeOriginalXaml”: false,

Some of the errors

Wont be able to check messages again until this evening but I appreciate the help!!