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Editorial Team
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Asked: 2026-06-10T21:05:58+00:00

I’m following the Android developers tutorial to build the first application. I did precisely

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I’m following the Android developers tutorial to build the first application. I did precisely what it says step by step and completed this page:
https://developer.android.com/training/basics/firstapp/starting-activity.html

Here I get many Java related errors:

Description                               Resource             Path                             Location    Type
View cannot be resolved to a type   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 24 Java Problem
Intent cannot be resolved to a type MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 25 Java Problem
Intent cannot be resolved to a type DisplayMessageActivity.java /MyFirstApp/src/com/example/myfirstapp  line 16 Java Problem
TextView cannot be resolved to a type   DisplayMessageActivity.java /MyFirstApp/src/com/example/myfirstapp  line 20 Java Problem
TextView cannot be resolved to a type   DisplayMessageActivity.java /MyFirstApp/src/com/example/myfirstapp  line 20 Java Problem
Intent cannot be resolved to a type MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 25 Java Problem
EditText cannot be resolved to a type   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 26 Java Problem
EditText cannot be resolved to a type   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 26 Java Problem
edit_message cannot be resolved or is not a field   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 26 Java Problem

Any help please?

EDIT:
@pawalzieba Ok, now I get only these 3 errors:

Description Resource    Path    Location    Type
edit_message cannot be resolved or is not a field   MainActivity.java   /MyFirstApp/src/com/example/myfirstapp  line 29 Java Problem
error: Error: No resource found that matches the given name (at 'hint' with value '@string/edit_message').  activity_main.xml   /MyFirstApp/res/layout  line 6  Android AAPT Problem
error: Error: No resource found that matches the given name (at 'text' with value '@string/button_send').   activity_main.xml   /MyFirstApp/res/layout  line 11 Android AAPT Problem
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1 Answer

  1. Editorial Team

    In Eclipse:
    Right click on project in Package Explorer tab -> “Properties” in dialog -> “Java Build Path” in left menu -> “Source” tab

    There you can change source folder. Set it to point on src folder in your project.

    EDIT

    Missing imports in java files. Press in Eclipse this shortcut Ctrl+Shift+O to organize imports.

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