eclipse版本中的现有android项目是4 42。我可以在没有新项目的情况下将其更改为4 2 2吗?
in AndroidManifest.xml file, find
<uses-sdk
android:minSdkVersion="21"
android:targetSdkVersion="21" />
change the minSdkVersion to 17 for JellyBean
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