That's strange, looks like something is wrong with the extracted source files. Can you check if the file src/signal-cli-0.6.2/build.gradle
exists in your aur build directory.
Have you tried building it in a clean chroot?
https://wiki.archlinux.org/index.php/DeveloperWiki:Building_in_a_clean_chroot
Pinned Comments
daniel.sch commented on 2020-10-20 14:00
@fruitywelsh: The fix for this problem is to run
(see https://wiki.archlinux.org/index.php/java#Change_default_Java_environment)
AsamK commented on 2017-06-17 12:24
I've added a pgp signature to the source file, to import the signing key, run the following command:
> gpg --recv-keys FA10826A74907F9EC6BBB7FC2BA2CD21B5B09570