Eclipse给我R无法解决可变错误，已经尝试了所有修复程序

Question

I am getting the typical "R cannot be resolved to a variable error" but I have currently tried what I feel to be almost every "fix" and I still can't get it to work. I think it has to do with the many errors I am getting from the res folder:

res\\values\\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.

res\\values-v11\\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.

res\\values-v14\\styles.xml:8: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.

and the many other similar errors that are to do with the xml files in the appcombat_v7 folder.

I have tried cleaning the project, building the project, I have updated my android sdk tools and ADT for eclipse to the newest version, I am using android 4.4 for the target of the project.

any help would be nice

EDIT: Also get this error: WARNING: unable to write jarlist cache file H:\\Workspace\\appcompat_v7\\bin\\jarlist.cache And this on the activity_main.xml in the layout folder: The project target (Android 5.0) was not properly loaded.

Answer 1

Delete these files

• res\\values\\styles.xml
• res\\values-v11\\styles.xml
• res\\values-v14\\styles.xml

then in your manifest under aplication tag remove this line also

    android:theme="yourTheme"

or alternatively you can do one more thing. add the appCompact Library to Your project

Answer 2

it seems you are not importing appcompat support package...

Adding the action bar when running on versions older than Android 3.0 (down to Android 2.1) requires that you include the Android Support Library in your application.

please follow the link for setting up the appcompat library

http://developer.android.com/tools/support-library/setup.html

Answer 3

Seems you have not imported appcompat_v7 properly. Try this:
1. Right Click Project --> properties --> Android --> Library section --> Add appcompat_v7.
2. Now clean and build everything.

Answer 4

修改appcompat_v7和yourProject项目中的project.properties文件，从target=android-19到target=android-21