'Unable to load hook class ' exception deploying module

Module Development
1

Hello,

I’m trying to deploy a new test module generated with the opc-ua-driver-archetype.
The problem comes posting the modl to the gateway using the post goal…
I get; Unable to load hook class “it.italprogetti.DriverHook”.
Looking the .modl it seems the DriverHook class is placed in the right path(as specified in the pom.xml)

this is a part of the pom.xml

        <configuration>
                    <projectScopes>
                        <projectScope>
                            <name>test-driver</name>
                            <scope>G</scope>
                        </projectScope>
                    </projectScopes>

                    <moduleId>it.italprogetti.test-driver</moduleId>
                    <moduleName>${project.parent.name}</moduleName>
                    <moduleDescription>${project.description}</moduleDescription>
                    <moduleVersion>1.8.0</moduleVersion>
                    <requiredIgnitionVersion>7.7.0</requiredIgnitionVersion>
                    <requiredFrameworkVersion>6</requiredFrameworkVersion>

                    <hooks>
                        <hook>
                            <scope>G</scope>
                            <hookClass>it.italprogetti.DriverHook</hookClass>
                        </hook>
                    </hooks>

                </configuration>


Where is the problem?

Thanks,
Federico
2

Can you upload or send a copy of your built module and tell us what version of Ignition you’re trying to install it on?

3

Not an expert on our dependency resolution, but as far as I know there should be an indication that your module relies on the OPC-UA module in order to build. Are you using one of the module builder plugins?

4

My Ignition Version is 7.9.6
I’m using the ignition maven plugin to build and post the module.

This is ta copy built module…
test-driver-Driver-Module-unsigned.modl (2.3 KB)

5

@PGriffith is correct that it’s missing a <depends> entry.

Copy it from this example: https://github.com/inductiveautomation/ignition-sdk-examples/blob/master/ModbusDriverExample/mde-build/pom.xml

and see if that fixes it.

6

added the depends entry and now it works.

Thank you very much Kevin for the support.

Federico

1 Like
7

A post was split to a new topic: depDendency “fpmi” is not installed

8

The link is invalid!
Could I have a copy of 'ModbusDriverExample', please?

9

The Modbus driver example is deprecated, there is no reason you need to reference it for anything. If you’re building a new driver/device module then look at the device example on GitHub.

11

Thank you, Kevin
But I need it to increase my knowledge.
Also, I want to use some of the codes to easily create a setting page interface.
Please send it to me via 'behzad.ebrahimi@FeedEngineering.com'