I am trying to update one of my mods to 1.8.9, and part of the update includes an API that wasn't present in previous builds, but it keeps failing with a package not found error.

 

Error log:

This set of MCP mappings was designed for MC 1.8.8. Use at your own peril.
#################################################
         ForgeGradle 2.1-SNAPSHOT-75bb646
  https://github.com/MinecraftForge/ForgeGradle
#################################################
               Powered by MCP unknown
             http://modcoderpack.com
         by: Searge, ProfMobius, Fesh0r,
         R4wk, ZeuX, IngisKahn, bspkrs
#################################################
:deobfCompileDummyTask
:deobfProvidedDummyTask
:sourceApiJava UP-TO-DATE
:compileApiJava
C:\Minecraft Dev\CashCraft\build\sources\api\java\io\github\tehstoneman\cashcraft\api\IEcomomy.java:3: error: package io.github.tehstoneman.cashcraft.economy does not exist
import io.github.tehstoneman.cashcraft.economy.PlayerWallet;
                                              ^
C:\Minecraft Dev\CashCraft\build\sources\api\java\io\github\tehstoneman\cashcraft\api\IEcomomy.java:31: error: cannot find symbol
        public PlayerWallet getWallet( EntityPlayer player );
               ^
  symbol:   class PlayerWallet
  location: interface IEcomomy
2 errors
:compileApiJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileApiJava'.
> Compilation 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: 8.709 secs

 

It seems that for some reason, during the build process, it copies the API source files into the build folder, but not the rest of the source.

 

build.gradle:

buildscript
{
    repositories
    {
        jcenter()
        maven
        {
            name = "forge"
            url = "http://files.minecraftforge.net/maven"
		//url "https://plugins.gradle.org/m2"
        }
    }
    dependencies
    {
        classpath 'net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT'
    }
}

apply plugin: "net.minecraftforge.gradle.forge"

archivesBaseName = "CashCraft"
group = "io.github.tehstoneman.cashcraft" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
version = "mc1.8.9-2.0.0"

// java version
sourceCompatibility = 1.7
targetCompatibility = 1.7

minecraft
{
    version = "1.8.9-11.15.1.1722"
if( file('../run').exists() )
{
	runDir = "../run/assets"
}
else
{
	runDir = "assets"
}

mappings = "stable_20"
}

sourceSets
{
    main
    {
        //java { srcDirs = ["src/main/java","src/api/java"] }
        java
        {
        	srcDir "src/main/java"
        }
        resources
        {
        	srcDir "src/main/resources"
        }
    }
    api
    {
        java
        {
        	srcDir "src/api/java"
        }
    }
}

processResources
{
    // this will ensure that this task is redone when the versions change.
    inputs.property "version", project.version
    inputs.property "mcversion", project.minecraft.version

    // replace stuff in mcmod.info, nothing else
    from(sourceSets.main.resources.srcDirs)
    {
        include 'mcmod.info'
                
        // replace version and mcversion
        expand 'version':project.version, 'mcversion':project.minecraft.version
    }
        
    // copy everything else, thats not the mcmod.info
    from(sourceSets.main.resources.srcDirs)
    {
        exclude 'mcmod.info'
        exclude '*.xcf'
        exclude '*.wav'
    }
}

 

Can anybody help?

Where did you put the jar

What jar? It's all my own code.

Run with --stacktrace option to get the stack trace.