Hello, First Thanks a lot for nbAndroid 0.7 which fixed the plateform and java exception. I still have some trouble compiling my project : After creating a new android project (1.1 or 1.5 android plateform) and compiling (didn't add anything into the program), i got the following message : Compiling 2 source files to C:\Users\YaNiS\Documents\5IPPA\SE\AndroidApplication\build\classes compile: Created dir: C:\Users\YaNiS\Documents\5IPPA\SE\AndroidApplication\dist Updating zip: C:\Users\YaNiS\Documents\5IPPA\SE\AndroidApplication\dist\AndroidApplication.apk_ Using keystore: C:\Users\YaNiS\.android\debug.keystore Deleting: C:\Users\YaNiS\Documents\5IPPA\SE\AndroidApplication\dist\AndroidApplication.apk_ jar: Result: -1 --> the program keeps running and the emulator don't shows up. (the : "Using keystore: C:\Users\YaNiS\.android\debug.keystore" line is in red) i searched on the web to find why the keystore was not correct. I changed my local time setting to English (USA) but nothing changed. I try to delete the key then create a new project (in 1.1 and 1.5 android plateform) but still no changes. I tryed to manually generate the keystore but failed. Do you have an idea ? why the keystore line on the log is red ? why netbeans is instantly deleting my .apk and why the emulator won't show up ? Thanks again, I am brand new to Android devs (and coding in general) so excuse my nwbiness.