I can't start workflow in Alfresco 4.2.e

[meijiwolf]

Hi! i am doing a example workflow called "publishWhitePaper" of a tutorial, but at the moment of do clic in START WORKFLOW i have an error:

http://imageshack.com/a/img537/6402/X8YhcK.png with the next messages of console https://dl.dropboxusercontent.com/u/34645170/error.txt . I check all code , but i can not find the error. please help me.

[s_palyukh]

Class org.apache.commons.logging.impl.SLF4JLogFactory does not implement org.apache.commons.logging.LogFactory
‍‍‍

As I can see from your log you have conflict of libraries… Take a look at the following post -> http://stackoverflow.com/questions/9460864/common-logging-jar-conflict-with-apache-axis-soap-client

[arak]

Hi,

I don't think which the error of the workflow is caused by the SLF4JLogFactory. I believe the error is about a variable in a script task. The console log shows:

….
2015-03-17 19:21:06,735  WARN  [bpmn.behavior.ScriptTaskActivityBehavior] [http
-bio-8080-exec-1] Exception while executing scripttask1 : couldn't find a variab
le type that is able to serialize [object global]
2015-03-17 19:21:06,735  DEBUG [repo.jscript.ScriptLogger] [http-bio-8080-exec-
1] org.alfresco.service.cmr.workflow.WorkflowException: 02170032 No se pudo inic
iar el flujo de trabajo activiti$exPostAD:1:904.
…

Check if the "script task" is getting the value of a variable correctly.

Greetings,
Pablo.