R.java is missing after updating ADT to 22.0.1

Question

I know that this problem was discussed in Eclipse giving an error, missing R.java file after a recent update and R.java is not generated after the ADT update, "but I still can’t get it working.

My R.java file was not generated, and I was looking for answers here, but none of the answers worked. Everything worked fine before I updated ADT, so the code should be fine. This is what I tried:

• I have no "import android.R".
• In "Project" -tab → "Build Automatically" is checked.
• I cleaned up the project and restarted eclipse several times.
• I downloaded Android SDK Tools (22.0.1), Android SDK Platform Tools (Rev.17) and Android SKD Build-tools (Rev. 17).
• I started a new "Project for Android" and "Hello World", but the problem persists, which means that with my * .xml.
• I tried changing my project -> "Android Tools" → "Fix Project Properties".
• I went to the "properties" of my project → "Java Build Path" → "Order and Export", where everything is checked and in that order: "src", "gen", "Android Private Libraries", "Android Dependencies", "Android 4.2.2 "and two endpoint libraries (I work with App Engine).
• I updated eclipse in "Help" -tab → "Check for Updates" and "No Updates Found" (I am running Eclipse Juno SR2).
• I installed the new software in "Help" -tab → "Install new software" from " http://dl-ssl.google.com/android/eclipse/ " and " http://dl.google.com/eclipse /plugin/4.2 ".
• In "project.properties" target = android-17 and in the "manifest" of android: targetSdkVersion = "17".

What should I do? Please help me here!

Answer 1

Check Java compliance level at 1.6

Window- * Preferences * -Java Compiler

Select Compiler Compliance Level: 1.6

Also check the problem window to see if your layouts (or another area) are displayed, and this prevents the compiler from creating the file.

Check window of problems Alt + Shift + Q, X

A message as it can help others.