Android to Unable to instantiate Application java.lang.ClassNotFoundException:

Question

I am working on application which is host on android market. Sometimes (once a month ) I got a crash report:

Unable to instantiate application java.lang.C

Answer 1

In my case, I was compiling and signing with Eclipse ADT (with File > Export > Export Android Application...) but missing some classes if I decompile my .apk. To solve it I use "Export an unsigned APK" and sign it using jarsigner and zipalign.