Could not set unknown property 'classifier' for task ':shadowJar'

[Glog78]

Could not set unknown property 'classifier' for task ':shadowJar'

[tonylambiris]

I'm the maintainer for AUR package chatty-git... it appears gradle7 is required for building.

Here are the changes I made in order to have the package compile successfully:

diff --git a/PKGBUILD b/PKGBUILD
index e4c8670..9255219 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -2,7 +2,7 @@

 pkgname=chatty-git
 _pkgname=${pkgname%-git}
-pkgver=0.21.b1.r0.g4189a3d0
+pkgver=0.24.1.r0.ge17ed1d3
 pkgrel=1
 pkgdesc='Twitch Chat Client for Desktop'
 arch=('any')
@@ -11,7 +11,7 @@ license=('GPL3')
 depends=('java-environment' 'sh')
 optdepends=('streamlink: for watching streams in a custom video player.'
             'livestreamer: for watching streams in a custom video player.')
-makedepends=('gradle')
+makedepends=('gradle7')
 provides=(${_pkgname})
 conflicts=(${_pkgname})
 source=("${pkgname}::git+https://github.com/chatty/chatty"
@@ -38,8 +38,8 @@ prepare() {
 build() {
     cd "${srcdir}/${pkgname}"

-    gradle --quiet build
-    gradle --quiet release
+    gradle7 --quiet build
+    gradle7 --quiet release
 }

 package(){

[tduva]

Looks like you're not using the Gradle Wrapper and you're on a Gradle version that is not supported. The shadow jar plugin wasn't compatible with Gradle 8 yet, but it seems like it is updated now. I'll switch to that version assuming there aren't any issues with it, then it should hopefully work.

[sangoku116]

Same error with beta AUR package

=> Starting build()...

FAILURE: Build failed with an exception.

* Where:
Build file '/home/zangoku/.cache/paru/clone/chatty-beta/src/chatty-0.24-b1/build.gradle' line: 84

* What went wrong:
A problem occurred evaluating root project 'chatty-0.24-b1'.
> Could not set unknown property 'classifier' for task ':shadowJar' of type com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'chatty-beta-0.24b1-1': 

[Freso]

I’ve switched the PKGBUILD to use the ./gradlew script. Now the build fails with > BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 63 (in full output). The command being run to build in this case is ./gradlew --quiet --info --debug --stacktrace build (line in PKGBUILD).

Gradle version is (should be) 8.1 (is that unsupported?) and OpenJDK at 19.0.2 (full version details).

Full output here: https://gist.github.com/Freso/255982f2c8d67d464b905a7d77f2721c

[sangoku116]

Still getting the same issue as @Freso

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'chatty-0.24-b4'.
> Could not open cp_proj generic class cache for build file '/home/zangoku/.cache/paru/clone/chatty-beta/src/chatty-0.24-b4/build.gradle' (/home/zangoku/.cache/paru/clone/chatty-beta/src/.gradle/caches/6.5.1/scripts/9q3t15d4wiuwxlxfozhl847vu).
   > BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 64

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'chatty-beta-0.24b4-1': 

[Freso]

FWIW, chatty-beta builds (and runs) with Gradle 8.1.1 and OpenJDK 20.0.1 as of v0.25-b2.