启动CCS5.4，在“New pruduct discoverd”中全选后，提示安装错误如下：
An error occurred while collecting items to be installed
session context was:(profile=epp.package.cpp, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: osgi.bundle,com.ti.rtsc.NDK.product_2.21.1.38,2.21.1.38.
File has invalid content:C:\Users\roiland\AppData\Local\Temp\signatureFile8604984208226664043.jar
Invalid content:plugin.xml
The file "plugin.xml" in the jar "C:\Users\roiland\AppData\Local\Temp\signatureFile8604984208226664043.jar" has been tampered!
怎么解决？