Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

1.7.5

What operating system and processor architecture are you using (go env)?

Windows 10 64 bit

GOPATH = D:/GoWork
GOROOT = D:/Go

What did you do?

Code below is the binding go package at D:\GoWork\src\rngo\rngo\rngo.go

Very simple, just returning a string

package rngo

// RNcall is used to bind with RN
func RNcall()  string {
	return "From Go platform"
}

Running the below command from > D:\GoWork\src\rngo

gomobile bind -target android -o rngo.aar -v  .

Verbose Output below

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\classes.go

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\classes.h

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\classes.c

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gen\src\Java\interfaces.go
rngo/rngo

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\fakegopath\pkg\android_arm\rngo\rngo.a
write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\go_rngomain.go

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\go_main.go

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\androidlib\main.go

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\android\src\main\java\rngo\Rngo.java

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\java_rngo.c

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\rngo.h

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\android\src\main\java\go\Universe.java

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\android\src\main\java\go\error.java

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\java_universe.c

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\universe.h

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\seq_android.go

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\seq_android.c

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\seq.h

write C:\Users\Minty\AppData\Local\Temp\gomobile-work-855641675\gomobile_bind\seq.go

Java
/C/Users/Minty/AppData/Local/Temp/gomobile-work-855641675/gomobile_bind command-line-arguments rngo/rngo Java

/C/Users/Minty/AppData/Local/Temp/gomobile-work-855641675/gomobile_bind command-line-arguments rngo/rngo Java

/C/Users/Minty/AppData/Local/Temp/gomobile-work-855641675/gomobile_bind command-line-arguments rngo/rngo Java

/C/Users/Minty/AppData/Local/Temp/gomobile-work-855641675/gomobile_bind

/# /C/Users/Minty/AppData/Local/Temp/gomobile-work-855641675/gomobile_bind

D:\Android\sdk\ndk-bundle\toolchains\x86_64-4.9\prebuilt\windows-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin\ld:
warning: skipping incompatible
D:\Android\sdk\ndk-bundle\platforms\android-21\arch-x86_64/usr/lib/liblog.so
while searching for log

D:\Android\sdk\ndk-bundle\toolchains\x86_64-4.9\prebuilt\windows-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin\ld:
warning: skipping incompatible
D:\Android\sdk\ndk-bundle\platforms\android-21\arch-x86_64/usr/lib/libdl.so
while searching for dl

D:\Android\sdk\ndk-bundle\toolchains\x86_64-4.9\prebuilt\windows-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin\ld:
warning: skipping incompatible
D:\Android\sdk\ndk-bundle\platforms\android-21\arch-x86_64/usr/lib/libc.so
while searching for c

D:\Android\sdk\ndk-bundle\toolchains\x86_64-4.9\prebuilt\windows-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin\ld:
warning: skipping incompatible
D:\Android\sdk\ndk-bundle\platforms\android-21\arch-x86_64/usr/lib/libdl.so
while searching for dl

command-line-arguments

aar: AndroidManifest.xml

aar: proguard.txt

aar: classes.jar

jar: META-INF/MANIFEST.MF

jar: go/LoadJNI.class

jar: go/Seq$GoObject.class

jar: go/Seq$Proxy.class

jar: go/Seq$Ref.class

jar: go/Seq$RefMap.class

jar: go/Seq$RefTracker.class

jar: go/Seq.class jar: go/Universe$proxyerror.class jar:
go/Universe.class

jar: go/error.class

jar: rngo/Rngo.class

aar: jni/armeabi-v7a/libgojni.so

aar: jni/arm64-v8a/libgojni.so

aar: jni/x86/libgojni.so

aar: jni/x86_64/libgojni.so

aar: R.txt

aar: res/

Successfully created rngo.aar since there is no error message and I can see that file at D:\GoWork\src\rngo\rngo\rngo.aar

I then manually import rngo.aar file into React Native project from android studio

1. File > New > New Module > Import .aar/.jar Package > #give the path
   to rngo.aar#
2. File > Project Structure > app > Dependencies >
   Module dependency > rngo.aar

What did you expect to see?

Inside IDE, in MainActivity.java I can successfully do 'import go.rngo.*;', but I cannot get 'go.rngo.Rngo.RNcall()' or 'go.rngo.Rngo;' to work

I need to access the go package rngo

I am doing something horribly wrong, that I cannot get this simple thing to work. I wasted whole day on google but with no avail. Hence I need help getting this to work.

What did you see instead?

Building this android app throws error 'cannot find symbol'

D:\RN\gomobile\android\app\src\main\java\com\gomobile\RngoModule.java:10:
error: cannot find symbol

import go.rngo;
^

symbol: class rngo
location: package go
1 error
:app:compileDebugJavaWithJavac FAILED