Xamarin Android 编译报错：
COMPILETODALVIK : UNEXPECTED TOP-LEVEL error
java.lang.OutOfMemoryError: Java heap space
解决：
用记事本打开 xamarin android的项目文件 *.csproj
找到<JavaMaximumHeapSize>节点，我的配置是空的，加上1G后，编译通过。
参考：
The fix was to add this section in your .csproj file:
<PropertyGroup>
<JavaMaximumHeapSize>1G</JavaMaximumHeapSize>
</PropertyGroup>
That will let Java allocate enough memory to complete your build.
That’s it! I hope someone find this post useful!
http://geekswithblogs.net/dotNETvinz/archive/2015/02/17/xamarin.android-and-visual-studiondashbuild-failed-with-no-errors.aspx