Deprecated Gradle features used

[lmg4497]

Forge Mod Builder uses deprecated Gradle features so I can't build anymore. Not just V1.12.2, higher versions like V1.16.5 also make errors.

[jarn123]

same it says that you must type --warning-mode all but idk where to type that

[BlackSnow50]

I also am getting this issue

[t-craft]

Try using forge version 2840 + jdk8
It worked for me after I added org.gradle.daemon=true to gradle.properties

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:\Apps\fmb\temp.zip
Extracting file to D:\Apps\fmb\test
Setting up build file!
Loaded project: D:\Apps\fmb\test, MC: 1.12.2, Forge: 14.23.5.2855, MCP: 20171003
Setting up project: D:\Apps\fmb\test, 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

Updating project: D:\Apps\fmb\test, MC: 1.12.2, Forge: 14.23.5.2855, MCP: 20171003
Checking for mcp updates at address: http://export.mcpbot.bspk.rs/versions.json
Current Mappings: 20171003, Latest Mappings: snapshot_20180814
Setting up project: D:\Apps\fmb\test, MC: 1.12.2, Forge: 14.23.5.2855, MCP: snapshot_20180814
Setting editor to eclipse
Ran gradlew command: gradlew setupDecompWorkspace eclipse --refresh-dependencies
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
Download https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/maven-metadata.xml
Download https://files.minecraftforge.net/maven/net/minecraftforge/artifactural/maven-metadata.xml

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

Download https://maven.minecraftforge.net/net/minecraftforge/legacydev/maven-metadata.xml
Download https://maven.minecraftforge.net/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar
Download https://maven.minecraftforge.net/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar
Download https://maven.minecraftforge.net/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar

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

Refreshing project: D:\Apps\fmb\test, MC: 1.12.2, Forge: 14.23.5.2855, MCP: snapshot_20180814
Setting up project: D:\Apps\fmb\test, MC: 1.12.2, Forge: 14.23.5.2855, MCP: snapshot_20180814
Setting editor to eclipse
Ran gradlew command: gradlew setupDecompWorkspace eclipse --refresh-dependencies
Starting a Gradle Daemon (subsequent builds will be faster)
Download https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/maven-metadata.xml
Download https://files.minecraftforge.net/maven/net/minecraftforge/artifactural/maven-metadata.xml

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

Download https://maven.minecraftforge.net/net/minecraftforge/legacydev/maven-metadata.xml
Download https://maven.minecraftforge.net/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar
Download https://maven.minecraftforge.net/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar
Download https://maven.minecraftforge.net/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar

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

Creating a new project!
Found download link: https://maven.minecraftforge.net/net/minecraftforge/forge/1.12.2-14.23.5.2840/forge-1.12.2-14.23.5.2840-mdk.zip
Downloaded file to D:\Apps\fmb\temp.zip
Extracting file to D:\Apps\fmb\GreaterComputers
Setting up build file!
Loaded project: D:\Apps\fmb\GreaterComputers, MC: 1.12.2, Forge: 14.23.5.2840, MCP: snapshot_20171003
Setting up project: D:\Apps\fmb\GreaterComputers, MC: 1.12.2, Forge: 14.23.5.2840, MCP: snapshot_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/2.14/userguide/gradle_daemon.html.
Download https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/2.3-SNAPSHOT/ForgeGradle-2.3-20210802.170449-48.pom
Download https://jcenter.bintray.com/com/google/guava/guava/18.0/guava-18.0.pom
Download https://jcenter.bintray.com/com/google/guava/guava-parent/18.0/guava-parent-18.0.pom
Download https://jcenter.bintray.com/net/sf/opencsv/opencsv/2.3/opencsv-2.3.pom
Download https://jcenter.bintray.com/com/cloudbees/diff4j/1.1/diff4j-1.1.pom
Download https://jcenter.bintray.com/com/cloudbees/cloudbees-oss-parent/1/cloudbees-oss-parent-1.pom
Download https://jcenter.bintray.com/com/github/abrarsyed/jastyle/jAstyle/1.3/jAstyle-1.3.pom
Download https://jcenter.bintray.com/net/sf/trove4j/trove4j/2.1.0/trove4j-2.1.0.pom
Download https://jcenter.bintray.com/com/google/code/gson/gson/2.2.4/gson-2.2.4.pom
Download https://jcenter.bintray.com/com/github/tony19/named-regexp/0.2.3/named-regexp-0.2.3.pom
Download https://files.minecraftforge.net/maven/net/minecraftforge/forgeflower/1.0.342-SNAPSHOT/forgeflower-1.0.342-20171208.041249-7.pom
Download https://jcenter.bintray.com/org/apache/httpcomponents/httpmime/4.3.3/httpmime-4.3.3.pom
Download https://jcenter.bintray.com/commons-io/commons-io/1.4/commons-io-1.4.pom
Download https://jcenter.bintray.com/org/apache/commons/commons-parent/7/commons-parent-7.pom
Download https://jcenter.bintray.com/org/apache/apache/4/apache-4.pom
Download https://files.minecraftforge.net/maven/net/minecraftforge/gradle/ForgeGradle/2.3-SNAPSHOT/ForgeGradle-2.3-20210802.170449-48.jar
Download https://jcenter.bintray.com/com/google/guava/guava/18.0/guava-18.0.jar
Download https://jcenter.bintray.com/net/sf/opencsv/opencsv/2.3/opencsv-2.3.jar
Download https://jcenter.bintray.com/com/cloudbees/diff4j/1.1/diff4j-1.1.jar
Download https://jcenter.bintray.com/com/github/abrarsyed/jastyle/jAstyle/1.3/jAstyle-1.3.jar
Download https://jcenter.bintray.com/net/sf/trove4j/trove4j/2.1.0/trove4j-2.1.0.jar
Download https://jcenter.bintray.com/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar
Download https://jcenter.bintray.com/com/github/tony19/named-regexp/0.2.3/named-regexp-0.2.3.jar
Download https://files.minecraftforge.net/maven/net/minecraftforge/forgeflower/1.0.342-SNAPSHOT/forgeflower-1.0.342-20171208.041249-7.jar
Download https://jcenter.bintray.com/org/apache/httpcomponents/httpmime/4.3.3/httpmime-4.3.3.jar
Download https://jcenter.bintray.com/commons-io/commons-io/1.4/commons-io-1.4.jar
This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.
WARNING: You are using an unsupported version of ForgeGradle.
Please consider upgrading to ForgeGradle 5 and helping in the efforts to get old versions working on the modern toolchain.
See https://gist.github.com/TheCurle/fe7ad3ede188cbdd15c235cc75d52d4a for more info on contributing.
#################################################
         ForgeGradle 2.3.4-gfc67182        
  https://github.com/MinecraftForge/ForgeGradle  
#################################################
                 Powered by MCP                  
             http://modcoderpack.com             
     by: Searge, ProfMobius, R4wk, ZeuX          
     Fesh0r, IngisKahn, bspkrs, LexManos         
#################################################
:deobfCompileDummyTask
:deobfProvidedDummyTask
:getVersionJson
:extractUserdev
Download https://maven.minecraftforge.net/net/minecraftforge/forge/1.12.2-14.23.5.2840/forge-1.12.2-14.23.5.2840.pom
Download https://maven.minecraftforge.net/net/minecraftforge/forge/1.12.2-14.23.5.2840/forge-1.12.2-14.23.5.2840-userdev.jar
:extractDependencyATs SKIPPED
:extractMcpData
Download https://maven.minecraftforge.net/de/oceanlabs/mcp/mcp/1.12.2/mcp-1.12.2-srg.zip
:extractMcpMappings
Download https://maven.minecraftforge.net/de/oceanlabs/mcp/mcp_snapshot/20171003-1.12/mcp_snapshot-20171003-1.12.zip
:genSrgs
:downloadClient
:downloadServer
:splitServerJar
:mergeJars
:deobfMcSRG
Applying SpecialSource...
Applying Exceptor...
:decompileMc
Download https://libraries.minecraft.net/com/mojang/patchy/1.2.3/patchy-1.2.3.pom
Download https://libraries.minecraft.net/oshi-project/oshi-core/1.1/oshi-core-1.1.pom
Download https://libraries.minecraft.net/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.pom
Download https://libraries.minecraft.net/com/mojang/authlib/1.5.25/authlib-1.5.25.pom
Download https://libraries.minecraft.net/com/mojang/realms/1.10.22/realms-1.10.22.pom
Download https://libraries.minecraft.net/com/mojang/text2speech/1.10.3/text2speech-1.10.3.pom
Download https://libraries.minecraft.net/net/minecraft/launchwrapper/1.12/launchwrapper-1.12.pom
Download https://maven.minecraftforge.net/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.pom
Download https://maven.minecraftforge.net/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.pom
Download https://maven.minecraftforge.net/org/scala-lang/modules/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.pom
Download https://libraries.minecraft.net/lzma/lzma/0.0.1/lzma-0.0.1.pom
Download https://libraries.minecraft.net/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.pom
Download https://libraries.minecraft.net/com/paulscode/codecwav/20101023/codecwav-20101023.pom
Download https://libraries.minecraft.net/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.pom
Download https://libraries.minecraft.net/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.pom
Download https://libraries.minecraft.net/com/paulscode/soundsystem/20120107/soundsystem-20120107.pom
Download https://libraries.minecraft.net/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.pom
Download https://libraries.minecraft.net/org/lwjgl/lwjgl/parent/2.9.4-nightly-20150209/parent-2.9.4-nightly-20150209.pom
Download https://libraries.minecraft.net/org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209.pom
Download https://libraries.minecraft.net/java3d/vecmath/1.5.2/vecmath-1.5.2.pom
Download https://maven.minecraftforge.net/ca/weblite/java-objc-bridge/1.0.0/java-objc-bridge-1.0.0.pom
Download https://libraries.minecraft.net/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209.pom
Download https://maven.minecraftforge.net/net/sf/jopt-simple/jopt-simple/5.0.3/jopt-simple-5.0.3.jar
Download https://maven.minecraftforge.net/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar
Download https://maven.minecraftforge.net/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar
Download https://maven.minecraftforge.net/org/scala-lang/modules/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar
Download https://maven.minecraftforge.net/ca/weblite/java-objc-bridge/1.0.0/java-objc-bridge-1.0.0.jar
Download https://libraries.minecraft.net/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-linux.jar
Download https://libraries.minecraft.net/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-osx.jar
:fixMcSources
:applySourcePatches FAILED

BUILD FAILED

Total time: 4 mins 32.882 secs

Building project: D:\Apps\fmb\GreaterComputers, MC: 1.12.2, Forge: 14.23.5.2840, MCP: snapshot_20171003
Ran gradlew command: gradlew build
Starting a new Gradle Daemon for this build (subsequent builds will be faster).
This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.
WARNING: You are using an unsupported version of ForgeGradle.
Please consider upgrading to ForgeGradle 5 and helping in the efforts to get old versions working on the modern toolchain.
See https://gist.github.com/TheCurle/fe7ad3ede188cbdd15c235cc75d52d4a for more info on contributing.
#################################################
         ForgeGradle 2.3.4-gfc67182        
  https://github.com/MinecraftForge/ForgeGradle  
#################################################
                 Powered by MCP                  
             http://modcoderpack.com             
     by: Searge, ProfMobius, R4wk, ZeuX          
     Fesh0r, IngisKahn, bspkrs, LexManos         
#################################################
:deobfCompileDummyTask
:getVersionJson
:extractUserdev UP-TO-DATE
:downloadClient SKIPPED
:downloadServer SKIPPED
:splitServerJar SKIPPED
:mergeJars SKIPPED
:applyBinaryPatches
:deobfProvidedDummyTask
:extractDependencyATs SKIPPED
:extractMcpData SKIPPED
:extractMcpMappings
:genSrgs SKIPPED
:deobfMcMCP
Applying SpecialSource...
Applying Exceptor...
:sourceApiJava
:compileApiJava UP-TO-DATE
:processApiResources UP-TO-DATE
:apiClasses UP-TO-DATE
:sourceMainJava
:compileJava
:processResources
:classes
:jar
:sourceTestJava
:compileTestJava UP-TO-DATE
:processTestResources UP-TO-DATE
:testClasses UP-TO-DATE
:test UP-TO-DATE
:reobfJar
:extractAnnotationsJar
:extractRangemapReplacedMain
D:\Apps\fmb\GreaterComputers\build\sources\main\java
:retromapReplacedMain
remapping source...
:sourceJar
:assemble
:check UP-TO-DATE
:build

BUILD SUCCESSFUL

Total time: 51.962 secs