DaemonUmbra

Really old Minecraft versions are no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.8 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

gradlew build --refresh-dependencies --rerun-tasks --console plain 1> gradle.log 2>&1 and provide gradle.log using one of the paste sites listed in the logs section of my signature below

I don't know how this works on Mac, please look it up

Do you have Java installed? What do you mean by "Manually opening the jar file"?

Do not necro ancient threads with support requests for outdated versions.

Do not necro ancient threads with support requests for outdated versions.

Uninstall every version of Java that you have, then reinstall the latest Java 8 HotSpot. I get my Java from https://adoptopenjdk.net

Please provide your installer log, it will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar

Odd, run the installer again?

If that is all you're capable of providing then we won't be able to help you, there's basically no info there. Please look up how to use your computer's filesystem.

Try running the jar manually and post what it shows

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Are you actually trying to install Forge for 1.5.2 or are you mistaking it for 1.15.2?

Please provide your installer log, it will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.10 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.8 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Please don't Necro old threads, if you have an issue make your own.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.