MissingPropertyException thrown for extended properties used in build/dependencies section of build.gradle

Old Forum
1

Here’s a test case build.gradle file.

https://gist.github.com/samrocketman/06d4cfc37e1e1c453db5

If you uncomment line 9 then gradle throws a MissingPropertyException. I’ve included a wrapper section so that it is easy to test against the latest stable gradle 2.2.1.

‘’’ gradle wrapper ./gradlew assemble ‘’’

Then after uncommenting line 9 in the test case.

‘’’ ./gradlew assemble --stacktrace ‘’’

2

The reason for this is because the ‘buildscript {…}’ block is evaluated before your project so that property does not yet exist. If you want to use properties within a ‘buildscript {…}’ block you will have to specify the properties on the CLI using ‘-Dprop=value’ or in a gradle.properties file.

3

Then I would at the very least consider it a documentation bug. Because the extended property documentation makes no mention of the exception you just mentioned. It claims that you set the property and can just use it where-ever. It took me a few weeks to figure out it was this strange case as you mention with some help in the IRC channel towards the end of my debugging.

4

For reference, I’m using this way to test against multiple versions of groovy in my project https://github.com/samrocketman/jervis/blob/master/build.gradle

5

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6

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