Jenkins pipeline pass upstream build number to downstream job using Pipeline script

Question

How to pass upstream build number to downstream job in Pipeline job using (Trigger parameter build on other projects) ?

Agenda: To pass upstream job build number to downstream job to download upstream artefacts in downstream, here's my Jenkins pipeline script

Upstream job script:

node 
{
    stage('Build parameters')
    {
    properties([parameters([string(defaultValue: '***', description: '', name: 'version', trim: false)])])
    }/*
    echo env.BUILD_NUMBER
    def Latest_Build_Number=env.BUILD_NUMBER
    build job: 'Downstream', parameters: [[$class: 'StringParameterValue', name: 'Latest_Build_Number', value: 'env.BUILD_NUMBER', propagate:false]]    
}

**Downstream job script**:
node 
{
    stage('Downstream')
    {
    properties([[$class: 'ScannerJobProperty', doNotScan: false], parameters([string(defaultValue: '', description: '', name: 'Latest_Build_Number', trim: false)])])
echo Latest_Build_Number
}
}

Error: 
*[Pipeline] {
[Pipeline] properties
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
java.lang.UnsupportedOperationException: no known implementation of class hudson.model.JobProperty is named ScannerJobProperty
    at org.jenkinsci.plugins.structs.describable.DescribableModel.resolveClass(DescribableModel.java:478)
    at org.jenkinsci.plugins.structs.describable.DescribableModel.coerce(DescribableModel.java:402)
    at org.jenkinsci.plugins.structs.describable.DescribableModel.coerceList(DescribableModel.java:514)
    at org.jenkinsci.plugins.structs.describable.DescribableModel.coerce(DescribableModel.java:388)
    at org.jenkinsci.plugins.structs.describable.DescribableModel.buildArguments(DescribableModel.java:341)
    at org.jenkinsci.plugins.structs.describable.DescribableModel.instantiate(DescribableModel.java:282)
    at org.jenkinsci.plugins.workflow.steps.StepDescriptor.newInstance(StepDescriptor.java:201)
    at org.jenkinsci.plugins.workflow.cps.DSL.invokeStep(DSL.java:264)
    at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:178)
    at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:122)
    at sun.reflect.GeneratedMethodAccessor237.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1213)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:42)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:157)
    at org.kohsuke.groovy.sandbox.GroovyInterceptor.onMethodCall(GroovyInterceptor.java:23)
    at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onMethodCall(SandboxInterceptor.java:155)
    at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:155)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:159)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:129)
    at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.methodCall(SandboxInvoker.java:17)*

Answer 1

Remove the quotes around env.BUILD_NUMBER.

Instead of:

value: 'env.BUILD_NUMBER'

Try:

value: env.BUILD_NUMBER

Answer 2

Looks like you're missing a plugin. Remove the [$class: 'ScannerJobProperty', doNotScan: false] portion. This works:

Upstream Job

node {
    stage('Build parameters') {
        properties(
            [parameters(
                [string(
                    defaultValue: '***', 
                    description: '', 
                    name: 'version', 
                    trim: false)
                ])
            ])
    }
    echo env.BUILD_NUMBER
    def Latest_Build_Number = env.BUILD_NUMBER
    build(
        job: 'Downstream', 
        parameters: [
            [$class: 'StringParameterValue', 
             name: 'Latest_Build_Number', 
             value: env.BUILD_NUMBER, 
             propagate: false]
        ]
    )
}

Downstream Job

node {
    stage('Downstream') {
        properties([
            parameters([string(
                defaultValue: '', 
                description: '', 
                name: 'Latest_Build_Number', 
                trim: false)
            ])
        ])
        echo Latest_Build_Number
    }
}