Egy Minecraft modot programoztam Eclipse segítségével. És amikor a "gradlew. Bat" nevű mappán belül a "build" nevü rész futtatom error ír. Ez miért van?

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Searge, ProfMobius, Fesh0r,

R4wk, ZeuX, IngisKahn, bspkrs

MCP Data version : unknown

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:compileApiJava UP-TO-DATE

:processApiResources UP-TO-DATE

:apiClasses UP-TO-DATE

:sourceMainJava

:compileJavawarning: [options] bootstrap class path not set in conjunction with -source 1.6

1 warning

:processResources

:classes

:jar

:compileTestJava UP-TO-DATE

:processTestResources UP-TO-DATE

:testClasses UP-TO-DATE

:test UP-TO-DATE

:extractMcpData UP-TO-DATE

:getVersionJson

:extractUserDev UP-TO-DATE

:genSrgs SKIPPED

:reobf FAILED

FAILURE: Build failed with an exception.

* What went wrong:

Execution failed for task ':reobf'.

> MALFORMED

* 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: 20.018 secs