Bamboo deployment project cannot find plan variable

[Andreas Schaek]

In my bamboo server (5.6.0) I have a build plan and created a variable inside of it (rccount).

In the deployment project i want to create a custom release version by adding this text as versionstring:

RC${bamboo.rccount}#${bamboo.buildNumber}

The first variable has been added by "Add variable to version" and i found it under "incrementable variables" (Type plan)

The second is a normal build variable.

When I hit generate prieview i can mark the rccount variable as incrementable and in the preview section it is counted right.

When I want to deploy the project the release number is shown as 

RC${bamboo.rccount}#23

When I hit "start deployment" I get an error

Could not execute 'ENVIRONMENT:8749057': java.lang.RuntimeException: Unable to resolve VariableContextBaseline

What am I doing wrong?

[Andreas Schaek · Accepted solution]

I found the solution on my own. 

Plan variables are only valid within builds finished after the variable has been created.

So i just needed to run a new build.