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我正在爲jruby 1.7.4安裝gems。我正在使用作爲程序一部分提供的Ruby的Java實現(腳本API)。 這裏是我在命令提示符下鍵入命令:爲jruby-complete.jar安裝Gem
java -Xmx500M -jar lib\jruby-complete.jar --command gem install builder --user-install
這是我遇到的錯誤:
RuntimeCache.java:658:in `<clinit>': java.lang.NoClassDefFoundError: org/jcoding
s/Encoding
from Ruby.java:216:in `<init>'
from Ruby.java:275:in `newInstance'
from Main.java:262:in `internalRun'
from Main.java:221:in `run'
from Main.java:201:in `main'
產生的原因:
null:-1:in `run': java.lang.ClassNotFoundException: org.jcodings.Encoding
from null:-1:in `run'
from null:-2:in `doPrivileged'
from null:-1:in `findClass'
from null:-1:in `loadClass'
from null:-1:in `loadClass'
from null:-1:in `loadClass'
from RuntimeCache.java:658:in `<clinit>'
from Ruby.java:216:in `<init>'
from Ruby.java:275:in `newInstance'
from Main.java:262:in `internalRun'
from Main.java:221:in `run'
from Main.java:201:in `main'