"Original" Jstl error unable to read the TLD "Meta-inf/c.tld" from the JAR file "File ...............

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I use Jstl-1.2.jar, many of the online version is deleted from the project Lib under the two jar package, that is the previous old versions, now integrated into one.

The reason why I have this problem: I downloaded Jstl-1.2.jar to my project directory: E:\myeclipse10\JSPDemo, And then copy the Jstl-1.2.jar to the project Lib folder, this is equivalent to the project has two Jstl-1.2.jar package (can be clearly seen in the MYECLIPSE directory structure), when I moved the downloaded Jstl-1.2.jar to another directory on the hard disk, and then Refre SH Engineering Catalog, there is no previous problem.

Add: After moving the Jstl-1.2.jar package, we need to rebuild the jar package and delete the original build path.

Description: Reprint please indicate the source.