[1.8] Failing to update forge

Whenever I try to update forge to 1.8-11.14.4.1563 I get this error log when I run gradlew setupDecompWorkspace:

E:\Users\JWBen\Projects\Minecraft\ElectronicEngineering REBUILD>gradlew setupDecompWorkspace
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Powered By MCP:
http://modcoderpack.com/
Searge, ProfMobius, Fesh0r,
R4wk, ZeuX, IngisKahn, bspkrs
MCP Data version : snapshot_20141130
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:extractMcpData UP-TO-DATE                                                       
:getVersionJson                
:extractUserDev                                                                     
Download http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.8-11.14.4.1577/forge-1.8-11.14.4.1577.pom
Download http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.8-11.14.4.1577/forge-1.8-11.14.4.1577-userdev.jar
:genSrgs FAILED                                              
              
FAILURE: Build failed with an exception.
              
* What went wrong:
Some problems were found with the configuration of task ':genSrgs'.
> File 'C:\Users\JWBen\.gradle\caches\minecraft\net\minecraftforge\forge\1.8-11.14.4.1577\unpacked\conf\packaged.srg' specified for property 'inSrg' does not exist.
> File 'C:\Users\JWBen\.gradle\caches\minecraft\net\minecraftforge\forge\1.8-11.14.4.1577\unpacked\conf\packaged.exc' specified for property 'inExc' does not exist.
              
* 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: 19.567 secs

Does anybody know what is going on, and if so how to fix it?