Conversion to Dalvik format failed with error 1 with javax/net/SocketFactory.class

Question

Encounter this problem when trying to Build Project getting such output in console:

[2010-07-19 23:29:23 - myProject]
trouble processing \"javax/net/SocketFa         


        

Answer 1

This happened to me this way,

I have a quite an old project which I had to start working again today. I use 'Universal Image Downloader' library for basically every project where I have to deal with lots of images. So in this old project I had the source files of 'Universal Image Downloader' included to it's 'src' path. Back then I was a newbie and slowly I started developing my own library which could handle every day simple Android development tasks very easily. Obviously I included the 'Universal Image Downloader' to this.

After dusting off the old project today the first thing I did was to reference my library to speed up the development process but as I was trying to debug I ran into the "Conversion to Dalvik format failed with error 1" over and over again. First I thought it was the support library but even after clearing all libraries and adding only mine and doing a quick 'Fix project properties' I still got it. After trying various solutions I noticed this in the console "java.lang.IllegalArgumentException: already added: Lcom/nostra13/universalimageloader/cache/disc/BaseDiscCache;"

It was as simple as that... I'm trying to compile a class which has already been compiled.

Solution : I just simply removed all the class files I got from 'Universal Image Downloader' library from the 'src' directory. Since my library references "Universal Image Downloader" library the old project started working just fine.

Answer 2

To summarise the information in the link bimbim.in provided (well my understanding when I glanced over it)

• The Android Davik VM tries to compile the jars but finds some stuff that it can't compile to .dex files

so

• Just create a "lib" directory in the root of the project (where the src, bin res directories are) and add them to the build path. Project Properties... Java Build Path... Libraries.. Add JARs..

Answer 3

I solved the problem by updating available packages in the Android SDK et AVD manager. No need to remove Eclipse.

Answer 4

Whenever the Project is having the ambitious data. This problem is caused. May be android can't able to find which one choose.

Answer 5

I was getting the same error. My problem was that i had an android device hooked up to debug with. As soon as I unplugged it I was able to export.

Answer 6

Either:

• javax.net.SocketLibrary is in your source code, or
• javax.net.SocketLibrary is included in a JAR file in your project