I'm working on adding Google Play Game Services to a Unity project.
Started getting these errors recently, however not sure if it is because of the Game Services, or could be I updated my machine.
The following in Console output:
Failed to compile resources with the following parameters:
-bootclasspath "/Users/alex/development/adt-bundle-mac-x86_64-20131030/sdk/platforms/android-21/android.jar"
-d "/Users/alex/Documents/development/unity/Maze/Maze/Temp/StagingArea/bin/classes"
-source 1.6 -target 1.6 -encoding UTF-8 "com/facebook/android/R.java" "com/google/android/gms/R.java"
"com/google/example/games/basegameutils/R.java"
"com/google/example/games/mainlibproj/R.java"
"com/mildspring/maze/R.java" warning:
java/lang/Object.class(java/lang:Object.class): major version 51 is
newer than 50, the highest major version supported by this compiler.
It is recommended that the compiler be upgraded. 1 warning
UnityEditor.HostView:OnGUI()
Error building Player: UnityException: Resource compilation failed!
Failed to recompile android resource files. See the Console for
details.
Got my answer, the issue was that "major version 51" is java 1.7, "version 50" is java 1.6. The solution was to install Java 1.7 and set path accordingly with the following command.
sudo ln -nsf /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK
For me, changing the JDK path at Preferences => External Tools => JDK finally resolved this issue. Creating the symbolic link wasn't enough or possibly not even needed.
I would just re-install or update JDK , And its work
http://www.oracle.com/technetwork/java/javase/downloads/index.html
Related
When I clone the project from GitHub and execute the program it throws this error
Please help all thanks
BUG! exception in phase 'semantic analysis' in source unit 'BuildScript' Unsupported class file major version 61
"Unsupported class file major version 61" indicates java 17, which is used by Gradle.
https://stackabuse.com/bytes/fix-java-error-unsupported-class-file-major-version-63/
This indicates major class version and corresponding Java versions.
https://docs.gradle.org/7.3/release-notes.html
Per this link, Java 17 support was added circa Gradle 7.3, so either upgrade to a more recent version of Gradle, or change your settings to use an earlier version of Java (such as JAVA_HOME if using the CLI).
If you run flutter doctor, you probably will see:
[!] Android Studio (version 2022.1)
✗ Unable to find bundled Java version.
https://github.com/flutter/flutter/issues/118502 seems to be the latest issue in which this crops up. https://github.com/flutter/flutter/issues/106674 notes they reverted a buggy change, but it hasn't hit stable yet, so you'll have to symlink the bundled JRE folder as a workaround til the next AS update.
e.g. for mac, you can use:
cd /Applications/AndroidStudio.app/Contents
ln -s jbr jre
I have installed eclipse on my iMac and when I try to open it, it gives me this error:
Failed to find a Main Class in
"/Applications/Eclipse.app/Contents/MacOS//../Eclipse/ plugins/org.eclipse.equinox.launcher_1.5.0.v20180512-1130.jar".
On my MacBook Pro, everything works fine, but I have done nothing different.
I have checked other posts, but most of them refer to a windows OS. There was an answer which said that it can just open when everything is in an English folder and this is true for me!
Thanking you in advance!
I came across this error after installing Eclipse PDT.
Open your terminal and run the version command: java -version.
If your java version is below 1.8, you will have to update your Java
Runtime Environment to at least 1.8.0 by installing an updated JDK
here.
Then re-run the java version command and your version
should be updated.
You should now be able to install and run
Eclipse.
I have the same issue, but on my MacBookPro. I first installed eclipse Photon, which when starting up prompted me to install Java 6, which I did from https://support.apple.com/kb/DL1572?locale=en_US
Then I also installed the latest JRE (jre-8u171-macosx-x64 as of yesterday). When running eclipse again I started getting this error. Then I tried to run from the command line, and got this error:
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/equinox/launcher/Main : Unsupported major.minor version 51.0
When googling that, the answers said that the reason for that is that the Oracle installer does not update the symlink in /usr/bin, which seemed to be confirmed by the fact that running java -version returned this:
java -version
java version "1.6.0_65"
The solutions I found for that were not feasible in MacOS starting in version El Capitan, and I am on High Sierra, so I followed the instructions in this post to fix that, and it worked, now I get:
java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)
After all of this, however, I get the same "Failed to find a Main Class" error on the dialog as reported initially here, and the same "UnsupportedClassVersionError" on the CLI that I had when the system was still on java 6, so now I am still stuck and out of ideas.
EDIT: FIXED IT!!
I kept thinking that the problem was the java version, it was somehow still using java 6 (which I had installed due to the initial prompt).
So I followed the instructions here to remove what I had installed for the alleged java 6 issue. Then I found this post in the eclipse forums, which stated at the end (comment added by Eric Rizzo on Tue, 14 February 2017 21:56) that this is not an Eclipse message, but rather an OS message, and that one should NOT do that as apple messed things up with that patch. And then it goes to explain that one should install java 8 JDK (NOT just the JRE as I had done). Once I removed Java 6 and installed the full java 8 JDK, it ran fine :)
You can edit the eclipse.ini with your vm configuration in the beginning of the file
-vm
/yourJvmPath/jdk-12.0.1.jdk/bin/java
cat /Applications/Eclipse.app/Contents/Eclipse/eclipse.ini
-vm
/Users/SomeUser/jdk-12.0.1.jdk/bin/java
-startup
../Eclipse/plugins/org.eclipse.equinox.launcher_1.5.400.v20190515-0925.jar
--launcher.library
../Eclipse/plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.1.1000.v20190125-2016
PD. It works with ApacheDirectoryStudio for MAC
This one works for me with MAC OS Mojave.
You can download the Java SE Development Kit 8u221 for mac from the below link.
jdk-8u221-macosx-x64.dmg
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
I have an issue and after many attempts don't know how to resolve it.
I have Java/Maven project with JDK 6 and installed Maven 3.2.5 in Eclipse Luna
Now I'm trying to run clean install command to create ZIP package but getting the following error message:
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project ABC: Fatal error compiling: invalid target release: 1.7
Does someone has this issue before and how do you resolve it.?
Could you help me please?
Thanks in advance.
The project you are attempting to compile specifies that the generated bytecode should be for Java 1.7. To do that you have to have a JDK7 or later.
Either change the project to specify 1.6, or upgrade your Java to 1.7. (There is really no reason to still stay on Java 1.6, it is old and obsolete now.)
I installed the jre7 and jdk1.7 and android sdk and avd manager perfectly my emulator is working properly but when i run the program which i wrote it is showing
Compiling code. 0.11
Compiling layouts code. 0.02
Generating R file. 0.00
Compiling generated Java code. Error
javac 1.7.0_17
javac: file not found: src\com\empire\designerscripts\*.java
Usage: javac <options> <source files>
use -help for a list of possible options
i newly formatted my system installed these
I am using basic4android in my laptop without any problem but in case of my desktop system it is showing the above error...
I have understood from Erel that this is fixed with Basic4Android v2.50 or above. One can also instead install the latest Java 6 version and use it for compilation.
The use of Java 6 was successful in my case.
I think that the problem is with the jdk that you are running. Try with jdk1.6.0_25. I use this one and never update this version because the version 7 have some issues with security.
I am using the Mechanical Turk command line tools on Windows. When I try to run a command (e.g., getBalance, createQualificationType), I always get the following error:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
Any clues as to what I could look at to fix this would be greatly appreciated!!
I have tried updating my key and secret key to no avail.
Note: I can get help for the commands by using -help, but I cannot run the commands themselves.
This error occurs whether I am running either JRE 1.5.0_06-b05, 1.5.0_22-b03, or 1.7.0_17-b02. The command line tools documentation states, "You must have the Java JRE 1.5.X (JRE 5). The Command Line Tools are not 100% compatible with JRE 6."
Since I am using the version of the command line tools packaged with JRE, I have also uninstalled my JRE. I get the same error.
UnsupportedClassVersionError means that you are trying to use a Java class that was compiled with a newer JDK on an older Java runtime environment. For example, you have a class that was compiled with JDK 7, and you are trying to use it on a Java 6 or older runtime environment.
Java is downwards compatible; newer Java runtime environments can run Java classes compiled with older versions without modifications, but not the other way around.
Check with what version the class you are trying to use was compiled, and use a Java runtime environment with the same version or newer to run the class.
You can check your Java runtime environment and JDK versions with:
java -version
javac -version
Apparently, the CLT installer installs a JRE that is too old to run the tools included in the installer. Seems like a serious bug (certainly annoying).
You can fix by installing and using a more recent JDK.
This post contains instructions on how to do so:
https://forums.aws.amazon.com/message.jspa?messageID=388586#388585