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I m working on a project which is working great on a machine but on another machine having OS WINDOW 8 when I run same project I got Exception

java.lang.NoClassDefFoundError: org.apache.commons.lang.StringEscapeUtils

It is related to runtime class path but I dont know from where I need to set that. External jar is used here and there is no error in any of file.

Please Suggest

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  • Possible duplicate stackoverflow.com/questions/1702852/… Commented May 31, 2013 at 11:20
  • Maybe your external library is not exported to your apk, I suggest you to see this:stackoverflow.com/questions/16841050/could-not-find-class/… Commented May 31, 2013 at 11:24
  • @Gustek I searched many question. But no answer works for me. So If you know how to rectift then please go forward. Commented May 31, 2013 at 11:27
  • Go back to your old machine and check CLASSPATH, make sure it's set the same on your new machine. Commented May 31, 2013 at 11:31
  • @VarunVishnoi: I have done that you said. Thanks! Commented May 31, 2013 at 17:46

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Since the last version of the ADT eclipse plugin (mine is 22.0.0.v201305140200--675,183), there are problems with external libraries and a common mistake remembers: java.lang.NoClassDefFoundError. To solve this problem you can follow the link in which I give a solution: Could not find class

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This error because of your .jar file. Add your jar file in libs folder look at this solution we will solve your problem https://stackoverflow.com/a/12511271/964741

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