**error about instance**

Camunda 7 Topics Discussion & Questions
1

Hello i am using camunda-bpm-tomcat-7.13.0 and i am trying to instanciate my workflow(created in modeler) in cockpit. So when i press play (on the high bar in modeler) i receive this error about instantiation. But how really don’t know how resolve it, or better says that i don’t know at what is referred.
the error is the following:

Cannot instantiate process definition NameJavaProject:3:baf6a7d4-0a15-11eb-845b-402343447967: ENGINE-09008 Exception while instantiating class ‘/NameJavaProject/src/main/java/com/package/NameJavaProject/service/ValidatorTask.java’: ENGINE-09017 Cannot load class ‘/NameJavaProject/src/main/java/com/package/NameJavaProject/service/ValidatorTask.java’: /NameJavaProject/src/main/java/com/package/NameJavaProject/service/ValidatorTask.java

2

Can you take a look at the Style Guide? It’ll help you understand how to format code correctly and also help you create questions that are easy to understand and also easier to answer :slight_smile:

3

yes, sorry

4

is it ok now ? @Niall

5

You should be using the qualified name of the class which will not have / in it it’ll look like this:

com.service.ValidatorTask

But i don’t know what it is exactly you should be able to find out by right clicking on the class

6

i did it, but the error keep stay.

7

Can you describe exactly what you did in your attempt to fix the problem and what happened that caused the error again?

8

i’ll try.
i delete from “properties panel” the java class, so i made a “copy and paste” of the qualified name of the class.

9

Can you show me what you pasted and also - did you redeploy the model?
Did you start a new instance after redeploying?

10

yes, i did a new deploy but the new istance doesn’t start… here is the error.
this is what i paste. the qn of the class.

/Test/src/main/java/com/package/Test/service/ValidatorTask.java <<<

11

That’s the file location - not the qualified name.

12

ok… i didn’t understand this little step :smile: :smile: :smile:
iìm gonna trying.

13

update: now i have not anymore problem with the classes (thank you for the tip) but the error persist in the impossibility to instance:

Starting instance failed [ start-instance-error ]

14

upadte, nothing to do he cannot read the class and consequently he can not istanciate

15

How are you deploying the model and classes?
Are you creating a WAR file and deploying it to an application server?

16

yes of course.
About the war file, i am using theìopen source version… so i put it in the floder

server\apache-tomcat-9.0.33\webapps

in cockipt i see all the deployment, but really i don’t how to istanciate it. It gives me always error.