问题
I am getting this error when I copies Android SDK folder from my friend's desktop to mine. I changed the path of my SDK in preferences and it told me to update my ADT which I tried to do but was unable as it gave me errors that it cannot rename my folder name. I also tried to delete my previous SDK folder but failed. Then also I have reinstalled the plugin in my Eclipse Indigo, no success. My dx.jar do exist in lib folder of platform-tools. Can some one help?
回答1:
This is caused by the existence of an older version of dx.jar in the VirtualStore (a folder where windows stores user versions of system and program files).
Go to "C:\Users\<your user name>\AppData\Local\VirtualStore\<android-sdk path>" and delete all the content, or just the "\platform-tools\lib\dx.jar" file.
i.e: if your user name is "user32" and your android SDK is placed in "C:\Program Files\Java\android-sdk", after the update you'll probably have an obsolete version of dx.jar in "C:\Users\user32\AppData\Local\VirtualStore\Program Files\Java\android-sdk\platform-tools\lib\"
来源：https://stackoverflow.com/questions/15136752/the-file-dx-jar-was-not-loaded-from-the-sdk-folder