實質上:一個庫項目聲明瞭一個Activity,一個實現項目使用(子類)這個Activity和一個測試項目練習實現的版本。在這個場景中,我們發現「該類型無法解析,它是從所需的.class文件間接引用的」。如果更改爲ADT r13,則不報告問題。 代碼發行再現: 在庫:ADT中的Android庫:類型無法解析錯誤
package com.r14.error.lib;
import android.app.Activity;
import android.os.Bundle;
public class R14ErrorLibActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
在實施:
package com.r14.error.imp;
import com.r14.error.lib.R14ErrorLibActivity;
public class R14ErrorImpActivity extends R14ErrorLibActivity {
}
在測試:
package com.r14.error.imp.test;
import com.r14.error.imp.R14ErrorImpActivity;
import android.test.ActivityUnitTestCase;
public class R14ErrorLibImpActivityTest extends ActivityUnitTestCase<R14ErrorImpActivity> {
public R14ErrorLibImpActivityTest() {
super(R14ErrorImpActivity.class);
}
private static final int ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING = 42;
public void testTest() {
assertEquals(ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING, 42);
}
}
錯誤:
The type com.r14.error.lib.R14ErrorLibActivity cannot be resolved. It is indirectly referenced from required .class files
如果LIB是(在舊版本的ADT動作不是必要的)手動添加1沒有顯示生成錯誤,但測試失敗:
java.lang.RuntimeException: Exception during suite construction
at android.test.suitebuilder.TestSuiteBuilder$FailedToCreateTests.testSuiteConstructionFailed(TestSuiteBuilder.java:239)
at java.lang.reflect.Method.invokeNative(Native Method)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:169)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:154)
at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:430)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1447)
Caused by: java.lang.reflect.InvocationTargetException
at com.r14.error.imp.test.R14ErrorLibImpActivityTest.<init>(R14ErrorLibImpActivityTest.java:10)
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
at android.test.suitebuilder.TestMethod.instantiateTest(TestMethod.java:87)
at android.test.suitebuilder.TestMethod.createTest(TestMethod.java:73)
at android.test.suitebuilder.TestSuiteBuilder.addTest(TestSuiteBuilder.java:263)
at android.test.suitebuilder.TestSuiteBuilder.build(TestSuiteBuilder.java:185)
at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:336)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3982)
at android.app.ActivityThread.access$2900(ActivityThread.java:119)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1901)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4363)
at java.lang.reflect.Method.invokeNative(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NoClassDefFoundError: com.r14.error.imp.R14ErrorImpActivity
... 19 more
我與Eclipse靛藍和ADT工作15
感謝任何幫助!
http://kyleclegg.com/eclipse-android-error-type-cannot-be-resolved/ –
@ Dr.nik:感謝您的線索。如果手動添加庫(在舊版adt版本中不需要該操作),則不會顯示構建類型錯誤,但測試失敗並且添加了該消息以發佈。 – ARNeto