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After a few days I opened the project, today I returned to work but when I opened the project I noticed that there was something wrong because all the classes I open indicate error by IDE, errors such as:
cannot resolve Symbol 'Activity', cannot resolve Symbol 'Intent'
That is, any import to IDE already shows error, I gave a clean in the project, I have already gone back to a backup of the project and nothing has helped. Someone has already gone through this?
I’m in the version 1.5.1 and the Java I have is the version 7
D:\Program Files\Java\jdk1.7.0_79.
The SDK Android is all updated.
When you open your android studio it does not return any error in Gradle? something similar happened here and it was a Gradle configuration, but the android studio returned to me that the problem was la.
– Vinicius
try updating the version of Gradle in the file build.Gradle from the classpath project 'com.android.tools.build:Gradle:2.21' ..
– Thiago Luiz Domacoski