game won't build after importing unity ads

after importing unity ads, the game will play fine in the editor, even loading the default dummy ad for testing, but will not build. gives error:
Error building Player: Win32Exception: ApplicationName='C:\Program Files (x86)\Java\jre1.8.0_20\bin\javac.exe', CommandLine='-bootclasspath "C:/Users/C/Android SDK/sdk/platforms/android-20\android.jar" -d "C:\Users\C\Documents\MyGame\Temp\StagingArea\bin\classes" -source 1.6 -target 1.6 -encoding UTF-8 "com\unity3d\ads\android\R.java" "com\unity3d\tester\R.java"', CurrentDirectory='C:\Users\C\Documents\MyGame\Temp\StagingArea\gen'

i have even deleted the game objects containing the ad scripts and still get error. cannot continue working on the project unless i delete all unity ads objects, but hoping there is a fix before i have to resort to that.

EDIT: deleted all unity ads folders and objects and game builds fine, so there is def. a problem with unity ads and android

 

Exact same problem here!

 

Also i get the exact same error when trying to use Chartboost

 

I have a feeling that this might be caused by duplicate .jar files, but I could be wrong.

Try searching for all jar files and delete any duplicates. Sometimes different plugins import the same jar files.

 

Hmm, the mention of "game objects with ad scripts" is throwing a red flag for me. Are you using the latest version of the Unity Ads asset package? Before importing the new package, first delete the old package assets from your project.

Could you try it again with a fresh import of the asset package?

If you're interested, here's a link to the demo script I use to make sure everything works:
https://gist.github.com/wcoastsands/3d003528a76f94fa2ede

Let me know how it works out for you guys.

 

it was a fresh import from whatever asset was live in the unity store as of this morning. no old packages to delete. as for the GO's, they were just buttons that referenced and turned on/off the ads. the scripts aren't the problem as they play fine, the error occurs during build and is some kind of conflict with the android SDK.

EDIT: just reimported it again and made a build before touching anything after import and got the build error.

 

Thanks, for the info. Still trying to reproduce the issue here. What other packages are you using?

 

the only *.jar files in my entire project are from unity ads. nothing else has that kind of build access to the SDK.

 

Getting the same error on my side. I'll try to get an answer for you guys here soon.

Thanks for the heads up!

 

i have been building android games for a year now and this only became a problem when i imported unity ads and goes away immediately when i remove it, so that is not the issue, but ty.

however, it does use the JRE because unity ads is built into a .jar file.

 

however, if unity ads were looking for the JRE in the wrong location (i dont remember having an option to set it) or were erroneously using the JRE instead of the android SDK (and i have no inner knowledge of how the two communicate), then that could be the issue.

EDIT: in fact that IS the issue. there is no file by that name. no javac.exe. the java compiler is javacpl.exe. Good eyes, Heikki!

 

yes to all 3.

the ads plugin is looking for a file that does not exist. there is no javac.exe. the java compiler is javacpl.exe

EDIT: not the compiler, but nonetheless there is no javac.exe file

 

So, I was reproducing this issue. I checked the system PATH, which was missing the path to the JDK bin directory.

Added the following to PATH and was able to build without the error:
C:\Program Files\Java\jdk1.8.0_20\bin

Can you confirm?

 

there was no PATH variable, so i create one that points to the java bin directory. however, it is still looking for a file that does not exist. there is no javac.exe:

ApplicationName='C:\Program Files (x86)\Java\jre1.8.0_20\bin\javac.exe',

 

upon googling this, there is a difference between the JRE and JDK. javac.exe does not exist in the JRE, only in the JDK:

http://stackoverflow.com/questions/...missed-after-installed-java7-in-windows764bit

 

Which version of windows are you running?

Also, the path your pointing to is the runtime, not the SDK:
C:\Program Files (x86)\Java\jre1.8.0_20\bin

Make sure you point to the SDK. I currently have the x64 version, located at:
C:\Program Files\Java\jdk1.8.0_20\bin

...which does include javac.exe.

 

so to clarify, i need the JDK to run unity ads?

EDIT: i HAVE the JDK, but i am running 64 bit so it is not located in ProgramFiles(x86) but in plain ProgramFiles

EDIT2: changed the PATH variable to point to the JDK, but the either the Android SDK or the ads plugin is still looking at the JRE directory.

running windows 8 64 bit.

 

I've got a Windows 8 install here. Just set it up in order to repro.

Yeah, you should have the Java Development Kit (JDK) installed to even be able build to Android. Not sure how you were able to build otherwise. The Android SDK installation usually requires you to install the JDK before continuing.

Now, there are both x86 and x64 versions of the Java Development Kit. If you're not seeing it under C:\Program Files (x86), be sure to check for it under C:\Program Files, which is where x64 applications get installed.

I have the 64-bit version, with javac.exe located at:
C:\Program Files\Java\jdk1.8.0_20\bin

 

Ah, just seeing this.

You also need to log out of your Windows session and log back in for any path changes take effect.

 

i have the JDK, for 64 bit. unity is looking at the JRE folder instead of it.
i have added JAVA, JAVA_HOME, to the system environment variables, pointing to the JDK bin directory. the error message is still referencing the JRE location.

the PATH system variable is occupied by nVidia. i have a PATH user variable that points to the JDK.

i will trying rebooting to see if that works. thank you

 

the problem persists after reboot. it is still looking at the JRE directory

 

After creating your environment variables, you need to make sure to add them to your path.

Using your variables for instance:
%JAVA%;%JAVA_HOME%;

Once added to your path, log out and back it, should work.

Edit:
Also, be sure to add it to the beginning of your path, just so that it checks those first.

Edit 2:
Important note, user variables can't be referenced in system variables. You can reference system variables in user variables though. So you'll have to create a new PATH user variable and reference the two variables you created earlier, as well as the system PATH variable. Like so:

%JAVA%;%JAVA_HOME%;%PATH%

Adding a screenshot as reference.

Edit 3:
The system PATH reference isn't necessary in the user PATH. Both will be called by the system when %PATH% is referenced.

You can test your PATH reference with the console using the echo command:
echo %PATH%

 

the problem persists. still looking at JRE folder, which is not in any of the environment variables.

 

i'm just going to copy the darn JDK files into the JRE directory...

 

hilariously that worked

 

Updated my earlier post.

 

ok just made a new build and video ads are running fine. however there is no skip button appearing after 5 seconds, though my admin panel has it set to that option. i should probably make a new thread for that though.

thanks again for the help!

 

OK installed the 32 Bit JDK and pointed my path to it and it works now. Thanks unity-nikkolai! (whereas I had 64 bit JDK installed before)

 

I installed the windows x86 jdk and routed my system to it manually. After that I rebooted my pc and it corrected the problem.

 

Can someone give me a summary on what I need to do if I have this problem?
Really appreciated if anyone with a greater understanding of this could do that.
Thanks!

 

Someone else wrote up a quick walkthrough for how to do this, screenshots included.
http://forum.unity3d.com/threads/unityads-dont-compile.285544/#post-1907280

 

Had the same issue, solved by installing last 32bit jdk and adding path variables as in linked guide.
I'd suggest to insert this check in installation guides. I've found this thread only after a couple hours of googling the wrong stuff.

Thank you all for the solution

 

Thanks, that worked out great.

 

basta deleta todas a instalações do java jre e jdk e instalar novamente apenas o jdk java e está resolvido

 

ok if anyone has both ads and example together on package just delete the example one then it should work great

 

Hi how to adding path variables ?