# Activities error codes

**100 - Mixed Start Conditions**\
Outgoing transitions of any **artifact** can have conditions but there is a restriction. All transitions must have conditions or not. Mixed option is not allowed (some outgoing transitions have conditions but others not).

**104 - Activities without Name**\
All activities in a **Process** must have a name.

**106 - Event without Name**\
All events in a **Process** must have a name.

**108 - Activities with the same Name**\
Is not allowed for two different activities to have the same name.

**112 - Process without Start**\
All **Process** must have a **Start Event**.

**116 - Process without End**\
All **Process** must have at least one **End Event**.

**120 - Isolated Activity**\
Activities with no transitions to other activities are no allowed.

**124 - Task Script Error**\
Any **Script** in the system must be a valid **Block** with two arguments. If a **Script** is not a **Block** then the process can no be imported.\
`[:script :process | doSomething]`\
Check: [Blocks](https://bpmflow.gitbook.io/project/application-manuals/backoffice-manual/main-menu/processes/define-new-process/define-a-task-to-run-a-script)