How to compile satisfactorily an apk using visual studio and ionic cordova?

I am compiling my app but I get this error when I click on release

will not let me compile the android apk

I'm using visualstudio 2015 + cordova 6 + ionic 3 I give release to the device and it sends me the following error

MSBUILD : cordova-build error : TypeError: Cannot read property '1' of null


1>MSBUILD : cordova-build error : TypeError: Cannot read property '1' of null
1>  TypeError Cannot read property '1' of null
========== Compilar: 0 correctos, 1 incorrectos, 0 actualizados, 0 omitidos ==========
========== Implementar: 0 correctos, 0 incorrectos, 0 omitidos ==========