[Solved] [1.8] How to update Forge version

[LordMastodon]

So, I loaded up the dev environment and saw that there's a new version of Forge. I'm wondering if there's a way to update my version without downloading the new version from the website and setting up the whole thing again and just inserting all my class files. I'm pretty sure this existed in 1.7.10 because I saw a Pahimar video on it, but does it exist for 1.8? And if so, how can I use it?

[Choonster]

It's the same for any version of Forge that uses ForgeGradle: change the

minecraft.version

field in your build.gradle script to the appropriate version from files.minecraftforge.net and refresh or regenerate your IDE project.

 

Recent versions of 1.8 have changed the way that the ForgeGradle plugin is applied (since there's now a stable version rather than a snapshot), so if you're updating to version 1503 or newer you should copy the changes to your build.gradle script.

[LordMastodon]

How do I refresh/regenerate my project (using Eclipse)? Also, how would I know what changes are being made (updating to 1506)?

[Choonster]

For Eclipse, run

gradlew setupDecompWorkspace cleanEclipse eclipse

. For IDEA, run the

setupDecompWorkspace

task and then refresh it in the Gradle tab.

 

Download and extract the version 1506 MDK (the new name for the src download), open its build.gradle file in a text editor and compare it to your current one. You'll want to replace the

buildscript

block and

apply plugin

line of your build.gradle with the

plugins

block of the new build.gradle.

[LordMastodon]

So for the new src should I also run the whole

gradlew setupDecompWorkspace --refresh-dependencies

and

gradlew eclipse

on it or just copy the file immediately after download?

[Choonster]

There's no need to run Gradle for the MDK download, just copy the ForgeGradle plugin declaration and Forge version from the build.gradle file into yours and run the Gradle commands I mentioned for your project.

[LordMastodon]

Did what you said, and I got this crash report from the command:

 

Download https://plugins.gradle.org/m2/gradle/plugin/net/minecraftforge/gradle/ForgeGradle/2.0.1/ForgeGradle-2.0.1.pom
Download https://plugins.gradle.org/m2/gradle/plugin/net/minecraftforge/gradle/ForgeGradle/2.0.1/ForgeGradle-2.0.1.jar

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'Robot Sculptures'.
> ForgeGradle 2.0 requires Gradle 2.3 or above.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 1 mins 18.115 secs

 

So yeah...

[LordMastodon]

I've downloaded the most recent version of Gradle (2.6) from the website and extracted it into my downloads folder, but how do I tell ForgeGradle where it is?

[larsgerrits]

If you have Gradle installed on your computer, you can use that instead of the wrapper, by using

gradle

instead of

gradlew

in the commands.

[LordMastodon]

It solved my Gradle problem, but the script is still throwing errors:

 

Download https://plugins.gradle.org/m2/gradle/plugin/net/minecraftforge/gradle/ForgeGradle/2.0.1/ForgeGradle-2.0.1.pom
Download https://plugins.gradle.org/m2/gradle/plugin/net/minecraftforge/gradle/ForgeGradle/2.0.1/ForgeGradle-2.0.1.jar
**********************
Powered By MCP:
http://modcoderpack.com/
Searge, ProfMobius, Fesh0r,
R4wk, ZeuX, IngisKahn, bspkrs
MCP Data version : 9.10
**********************
:deobfCompileDummyTask
:deobfProvidedDummyTask
:getVersionJson
:extractUserdev
Download http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.8-11.14.3.1506/forge-1.8-11.14.3.1506.pom
Download http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.8-11.14.3.1506/forge-1.8-11.14.3.1506-userdev.jar
:extractMcpData
Download http://files.minecraftforge.net/maven/de/oceanlabs/mcp/mcp/1.8/mcp-1.8-srg.zip
:extractMcpMappings
:genSrgs
:downloadClient SKIPPED
:downloadServer SKIPPED
:splitServerJar
:mergeJars
:deobfMcSRG
Applying SpecialSource...
Applying Exceptor...
:getFernFlower SKIPPED
:decompileMc
:fixMcSources
:applySourcePatches
:remapMcSources
:recompileMc
Download https://libraries.minecraft.net/com/mojang/authlib/1.5.21/authlib-1.5.21.pom
Download https://libraries.minecraft.net/com/mojang/authlib/1.5.21/authlib-1.5.21.jar
[ant:javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
[ant:javac] Note: Some input files use or override a deprecated API.
[ant:javac] Note: Recompile with -Xlint:deprecation for details.
[ant:javac] Note: Some input files use unchecked or unsafe operations.
[ant:javac] Note: Recompile with -Xlint:unchecked for details.
[ant:javac] 1 warning
:extractNatives
:getAssetIndex UP-TO-DATE
:getAssets
Current status: 16/734    2%
Current status: 41/734    5%
Current status: 118/734    16%
Current status: 208/734    28%
Current status: 313/734    42%
Current status: 394/734    53%
Current status: 483/734    65%
Current status: 514/734    70%
Current status: 585/734    79%
Current status: 679/734    92%
Current status: 733/734    99%
:makeStart
[ant:javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
[ant:javac] C:\Users\<username>\Desktop\Projects\Minecraft\Robot Sculptures\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:35: error: cannot find symbol
[ant:javac]             Field coreModList = GradleStartCommon.getFmlClass("fml.relauncher.CoreModManager", classLoader).getDeclaredField("loadPlugins");
[ant:javac]                                                  ^
[ant:javac]   symbol:   method getFmlClass(String,LaunchClassLoader)
[ant:javac]   location: class GradleStartCommon
[ant:javac] C:\Users\<username>\Desktop\Projects\Minecraft\Robot Sculptures\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:39: error: cannot find symbol
[ant:javac]             Class<ITweaker> clazz = (Class<ITweaker>) GradleStartCommon.getFmlClass("fml.relauncher.CoreModManager$FMLPluginWrapper", classLoader);
[ant:javac]                                                                        ^
[ant:javac]   symbol:   method getFmlClass(String,LaunchClassLoader)
[ant:javac]   location: class GradleStartCommon
[ant:javac] C:\Users\<username>\Desktop\Projects\Minecraft\Robot Sculptures\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:61: error: cannot find symbol
[ant:javac]                     File newFile = GradleStartCommon.coreMap.get(coreMod.getClass().getCanonicalName());
[ant:javac]                                                     ^
[ant:javac]   symbol:   variable coreMap
[ant:javac]   location: class GradleStartCommon
[ant:javac] C:\Users\<username>\Desktop\Projects\Minecraft\Robot Sculptures\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:92: error: cannot find symbol
[ant:javac]             Field f = GradleStartCommon.getFmlClass(COREMOD_CLASS, classLoader).getDeclaredField(TWEAKER_SORT_FIELD);
[ant:javac]                                        ^
[ant:javac]   symbol:   method getFmlClass(String,LaunchClassLoader)
[ant:javac]   location: class GradleStartCommon
[ant:javac] 4 errors
[ant:javac] 1 warning
:makeStart FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':makeStart'.
> Compile failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 13 mins 53.221 secs

 

No clue why that's not working...