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However, Android is an opensource platform and based on widely spread web development language Java which is very easy to learn at other hand, many Android developers are committing serious mistakes in their Android application development projects. Usually beginners or mid level developers are committing such common mistakes so in this article we will explore something about such common mistakes and their possible solutions.

It has been seen that sometime things are not working as they should be and that is again true for the Android development. Recently we have seen that some developers have complained that their project shows some errors like:

Project... is missing

and further demanding the source files or folders like 'gen'

In such conditions you need to clean the project and you can do the by going into the project menu and push the clean button so it will clear all clutter, albeit you have to clean the library projects too. Apart from this you may receive another error like this project couldn't built if you can't solve the path errors. Thus, you need to do the same thing and clear the project. The other small errors like Unable to open class file R.java. So again you need to clear the project same the way.

Sometime what happens when you start your Android app it stops immediately or during the execution of the app and you will find a message in your LogCat view indicating that content activity is not found in AndroidManifest.xml. Thus you need to check the manifest file whether you have declared you activity or not and if not do that.

In some cases Android developers find communication problem in their Android apps programming project especially with emulator or with the Android device so you need to know that basically communication is handled by the ADB (Android Debug Bridge) therefore, you have to reset the adb to solve the communication problem and that you can do with the help of Eclipse. In Eclipse you need to select the DDMS perspective through Wnidow by pushing open perspective button then select the Other option and then DDMS. Here you need to restart the adb so select the Reset adb option in the Device View field in Eclipse and check that whether your device or emulator is displayed in it or not.

Earlier we have mentioned that if we want to see some error messages we need to open the LogCat view and find out the log messages of the Android device to get some help in Android app development to analyze the problems as well as doing testing. If you want to see some Java exception you have to open the LogCate view and for that you have to select the Window menu and where you have to select Show View option then Other option and then Android and finally LogCat.

Sometime Android developers fine some strange complains during their Android apps development project like: You can't use Java7. Thus in such situation you have to select right click in the project IDE and select the Java Compiler entry where you will find information regarding to the version of the Java in use so Ensure that the latest version is used or Java 1.5 or Java 1.6 is used. After that you have to enable the project specific setting by clicking the checkbox.