All is in the title, this is the console output :
A:\Titouan\Développement\NewdyMod
λ gradlew genEclipseRuns
Starting a Gradle Daemon, 1 incompatible Daemon could not be reused, use --status for details
> Configure project :
Java: 12.0.1 JVM: 12.0.1+12(Oracle Corporation) Arch: amd64
New Dep: net.minecraftforge:forge:1.16.2-33.0.23_mapped_snapshot_20200514-1.16
Copying local object: c0/c05cbd8c88b5878703898150e157af88a29d8091 Asset: realms/textures/gui/images/6.png
realms/textures/gui/images/6.png Hash failed.
> Task :downloadAssets FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':downloadAssets'.
> Failed to get asset: realms/textures/gui/images/6.png
Some assets failed to download or validate, try running the task again.
* 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
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/4.10.3/userguide/command_line_interface.html#sec:command_line_warnings
BUILD FAILED in 46s
6 actionable tasks: 6 executed
Thanks for responses