Production build error after upgrade to 7.1

Hi,

I'm having problems with producing Android .apk files from my projects after upgrading from RhoStudio 5.x to the latest 7.1.

I believe I have the latest Java version (C:/Program Files/Java/jdk1.8.0_144/bin). I've also got the latest Android NDK (r20) which I downloaded separately, and I'm using the Android SDK which is shipped with Android Studio (C:/Users/danie/AppData/Local/Android/Sdk), I'm currently using the API Level 20 version of the SDK.

When I try to create a production build for a project I have, I get the following build errors:


[31mC:\Android\android-ndk-r20\toolchains\llvm\prebuilt\windows-x86_64\bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin\ld.gold: error: C:/Code/rhomobile/edicohandheld-nav/edicohandheldnav/bin/target/android/debug/curl/armeabi/libcurl.a(vtls.c.o): multiple definition of 'Curl_ssl_addsessionid'

[0mC:\Android\android-ndk-r20\toolchains\llvm\prebuilt\windows-x86_64\bin/../lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin\ld.gold: C:/Code/rhomobile/edicohandheld-nav/edicohandheldnav/bin/target/android/debug/curl/armeabi/libcurl.a(sslgen.c.o): previous definition here



I.e. this is the first build error, I get a number of other errors following this one.

Any idea what could be the issue?

Regards,
Daníel