Gradle throws an error of expecting EOF, found '<<'.Why?

Question

I am using the below piece of code to copy and filter the properties from the properties file and it is working fine.There are one variable which is not static and I need to pass as a paramter so it could work on correct file.I am using -Penv=test or -Penv=at but I am getting the error.

task createLocalProp(type:Copy) << {

    from "templates/local.properties.template"

    into ("$buildDir/properties")

    def myProps = new Properties()

    file("Properties/${env}/local_${env}.properties").withInputStream{

    myProps.load(it);

    }

    filter(org.apache.tools.ant.filters.ReplaceTokens, tokens: myProps)

}

Error:

C:\GRADLE_WORK\XXXX-GRADLE>gradle -b build_localprop.gradle createLocalProp -Pen

v=test



FAILURE: Build failed with an exception.



* Where:

Build file 'C:\GRADLE_WORK\XXX-GRADLE\build_localprop.gradle' line: 37



* What went wrong:

Could not compile build file 'C:\GRADLE_WORK\XXXX-GRADLE\build_localprop.gradle'

.

> startup failed:

  build file 'C:\GRADLE_WORK\XXX-GRADLE\build_localprop.gradle': 37: expecting

EOF, found '<<' @ line 37, column 33.

     task createLocalProp(type:Copy) << {

                                     ^



  1 error

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Answer 1

I'm not sure right now why the compiler error happens, but you should not configure the task in execution phase, but in configuration phase. << syntax is a shortcut for doLast and thus even if it would compile it would probably not work as expected. Remove the << and probably everything is ok.

Gradle throws an error of expecting EOF, found '<<'.Why?

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