Forge Mod Builder Error "Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0."

[AnxietyAssassin]

I am trying to create a mod for 1.12.2. I am following the tutorial which uses Forge Mod Builder and I followed every step perfectly. There is supposed to be a folder that is called Eclipse (I am using Eclipse) and that file doesn't exist, also there is a warning 

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.9/userguide/command_line_interface.html#sec:command_line_warnings

I googled this problem and it told me to enter "--warning-mode=(all,none,summary)" but I don't know where to enter it. 

Also this is the entire Console Log if that is useful:

Checking for updates at URL: https://raw.githubusercontent.com/CJMinecraft01/ForgeModBuilder/master/update.json
An update is available!
Current Version: 0.1.1.3, Newest Version: 0.1.1.4
Creating a new project!
Found download link: https://maven.minecraftforge.net/net/minecraftforge/forge/1.12.2-14.23.5.2855/forge-1.12.2-14.23.5.2855-mdk.zip
Downloaded file to D:\MC\Mods\temp.zip
Extracting file to D:\MC\Mods\MM
Setting up build file!
Loaded project: D:\MC\Mods\MM, MC: 1.12.2, Forge: 14.23.5.2855, MCP: 20171003
Setting up project: D:\MC\Mods\MM, MC: 1.12.2, Forge: 14.23.5.2855, MCP: 20171003
Setting editor to eclipse
Ran gradlew command: gradlew setupDecompWorkspace eclipse
To honour the JVM settings for this build a new JVM will be forked. Please consider using the daemon: https://docs.gradle.org/4.9/userguide/gradle_daemon.html.
Daemon will be stopped at the end of the build stopping after processing

> Configure project :
New Dep: net.minecraftforge:forge:1.12.2-14.23.5.2855_mapped_snapshot_20171003-1.12

Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.9/userguide/command_line_interface.html#sec:command_line_warnings