unsigned APK can not be installed

Question

I am trying to distribute my application to some people for testing  I have installed it on my Desire directly from eclipse and it works fine   To create an APK-file  I choose  Export Unsigned Application Package  directly from eclipse  and then an APK file was created  I emailed it to myself and downloaded the file to the SD-card  But when I try to install it  using ES File Browser   I get a message saying  Application not installed     I have already checked the  Allow installation of non-Market application  on my phone  Any ideas   Yeah I found the problem  see my answer below   I did not know that even with the  Allow Installation of non-Marked application   I still needed to sign the application  I self-signed my application  following this link self-sign and release application  It only took 5 minutes  then I emailed the signed-APK file to myself and downloaded it to SD-card and then installed it without any problem

User · Answer

An unsigned application cannot be installed  When we run directly from eclipse  that apk is signed with debugger key and can be found in bin  folder of the project  You can use that for test purpose distribution also

User · Answer

You could also send your testers the apk that is signed with your debug key  You can find that in the bin folder of your project after building in debug mode

User · Answer

You cannot install an unsigned application on a phone  You can only use it to test with an emulator  If you still want to go ahead  you can try self-signing the application    Also  since you are installing the application from an SD card  I hope you have the necessary permissions set  Do go through stackoverflow com and look at questions regarding installation of applications from an SD card - there have been many and they have been asked before     Hope that helps

User · Answer

I did not know that even with the  Allow Installation of non-Marked application   I still needed to sign the application   I self-signed my application  following this link self-sign and release application  It only took 5 minutes  then I emailed the signed-APK file to myself and downloaded it to SD-card and then installed it without any problem

User · Answer

You can test the unsigned-apk only on Emulator  And as its step of application deployment and distribution  you should read this article atleast once  i suggest  http   developer android com guide publishing app-signing html   For your question  you can find the below line in above article       All applications must be signed  The system will not install an application that is not signed    so you have to have signed-apk before the distribution of your application   To generate Signed-apk of your application  there is a simple wizard procedure  click on File - gt  Export - gt  Android - gt  Export Android application

User · Answer

I cannot install an apk build with  Export Unsigned Application Package  Android SDK feature  but i can install an apk browsing the bin directory of my project after the project buid  I put this apk on my sd on my HTC Wildfire phone  select it and the application install correctly  You need to allow your phone to install unsigned apk  Good Luck

User · Answer

Just follow these steps to transfer the apk onto the real device with debugger key  and which is just for testing purpose   Note  For proper distribution to the market you may need to sign your app with your keys and follow all the steps     Install your app onto the emulator  Once it is installed goto DDMS  select the current running app under the devices window  This will then show all the files related to it under the file explorer  Under file explorer go to data- app and select your APK  which is the package name of the app   Select it and click on  Pull a file from the device  button  the one with the save symbol   This copies the APK to your system  From there you can copy the file to your real device  install and test it    Good luck

[android] unsigned APK can not be installed

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