android的问题，新手求指导
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悬赏园豆：50
[待解决问题]
Error:(13, 23) String types not allowed (at 'icon' with value 'v@mipmap/ic_launcher').
Error:Execution failed for task ':app:processDebugResources'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'D:\AppData\Local\Android\sdk1\build-tools\23.0.3\aapt.exe'' finished with non-zero exit value 1
用android做的记事本，我是按照视频步骤做的，代码没什么问题，弄了好久了还是不行，求指导
