Hi I am working on an android project that requires File searching.
Now theres one problem that has arised -> I cannot import the package java.nio.file.*;
whatsoever even when I have installed jdk 7. Am using eclipse for android.
Plz help
Earlier I have changed Window>preferences>java>compile>1.7
The project compiles.
But when I changed Project>properties>java compiler>1.7
Then it gives me the following error
"Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties."
Android does not currently support Java 7.
The system requirements for the Android SDK currently specify Java 6.
The current android specifications require your project to be compiled under java 5 or java 6. Like Jason C has said, java 7 is not currently supported.
Unfortunately there isn't much way to bypass this restriction (if you intend to publish your application) so your stuck with rewriting any java 7 code (empty <> operation, try-with-resources, etc) into java 6.
Android Systems only support java versions upto Java 6 and hence the builder is complaining for it. In builder you can create different kind of projects(non-android also), hence it allows to set the java compiler preferences to version 1.7 in windows menu. But if you try to set the java compiler version to 1.7 for an android project, it will not let you.
Android SDK is not x64. So it will not support java7. It will check for any compatible version like java5.java6. So choose java6. That's why you've got this problem. Try Fix Project Properties, if still getting error change version 1.7 to 1.6 from project > properties > java compiler > 1.6!
Related
*Due to some project requirements I "have" to use eclipse 4.18 (2020-12) which uses Java 11 by default and is mandatory to start.
But my entire project is/was written in Java 1.7 earlier. Now , in my mac i have both java 1.8 and 11 installed also my eclipse settings are such shown below.
I have made sure removed all java 11 references in my eclipse and made the project and workspace configure to take the 1.8 jdk and run at 1.7 compiler level.*
but when i run ,project -->clean-->build, i run into the JaxB missing in java 11 ( in java 11 JAXB was removed and my project uses jaxB extensively) This is known.
So i am wondering what am i missing that my projects are still building my project with java 11 and not java 1.7 (using jdk 1.8 configured).
Please help.. stuck on this since some days.
machome
Eclipse Compiler setting-1
Eclipse Setting Execution Envs
Eclipse installed JRE's
Eclipse Project specific setting
Java 11 JaxB error
If Eclipse itself is being run with Java 11, and you have a plug-in installed that has not been properly update to work under Java 11, as it appears, you will need an updated version of that plug-in. Update to the latest "oracle design studio", and if you still see this problem, contact Oracle support.
The latest Eclipse may require Java 11 to run, but it's simple to set up Eclipse projects that use older Java versions. Don't mess with the Java version it uses to start up, as long as that is a proper Java 11 version.
As one commenter mentions, you'll have to have a particular Java distribution configured in "Installed JREs->Execution Environments", and then you'll have to have the project configured to use that Java version symbol, like "JavaSE-1.7".
I am beginner in Java programming. Here is my question:
It says Java SDK 1.8. I am confused.
What is the relationship between Java SDK 1.8 and java version 6 or 8?
Here is a picture in intelliJ.
It says Java SDK 1.8. It prevents me using a try-with-resouese, which is available in Java 7.
How do I find out which Java version that IntelliJ is using in my current project?
Java 8 and 1.8 are the same. As several people pointed out in the comments. The difference is between marketing and developer version numbering. Take the "1." off the front to get the marketing version.
To enable the use of Java 7 and 8 features in IntelliJ open the project structure dialogue. (File > Project Structure...) In the project section there is a "Project Language Level" drop down. Select the one for 7 or 8 to enable the use of the try with resource feature.
I'm using Eclipse. If I change the compliance level of the main (Android) project from 1.6 to 1.7, I get an error:
Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties.
If I change the compliance level of the "library" (Java) project from 1.7 to 1.6, a lot of the code in it becomes invalid.
Is going through the code of the Java project and fixing every error my single option here?
Google just released Eclipse ADT 22.6 which adds support for Java 7 language features, http://developer.android.com/tools/sdk/eclipse-adt.html. Once you upgrade to to the latest version of the plugin the Compiler compliance level will include the 1.7 option.
Try to clean your project, and fix android properties.
Link here and here
I guess you can find your answer here: Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties
If that doesn't help, I'd suggest to update all android's sdk plugins. I've had similar issue, after updating android's sdk, but I've missed to update android build tools and that caused lot of errors - could be the same with you.
You can use jar builded with Java7 but only in case if it is not using any special features of java7, otherwise dx wont be able to convert jvm byte code to dalvic format.
But there is a one problem: default build process of android sdk (from eclipse e.g.) fails if it finds classes with wrong version (compiled with java7, dx generates warning and fails). You should pass some argument to dx to drop such warnings. Android studio's and Idea's build process doesnt care about this warnings and dx tries co convert java byte code to dalvic despite class version.
Use IntelliJ IDEA instead of Eclipse. In IDEA you can set the Product language level (in Project Structure → Project) separately from the Android SDK's. As long as your code only uses 1.7 features that don't affect the bytecode, it'll work (but the compiler will give you warnings). This way, you can use diamonds, switch on strings, and other syntactic sugar, but you might be out of luck with multi-catch. In fact, you can even use experimental 1.8 features like annotations in strange places, but I haven't tested lambdas yet (since IDEA abbreviates the code anyway). See the intellij-idea tag for more info.
Since Android Studio is a special build of IntelliJ IDEA, it might have the same feature, but I haven't tried in that.
If your library really needs java 7, there is nothing you can do.
Otherwise, go to your library project settings, go to the Java Compiler settings, and select 1.6 .class files compatibility.
If there are errors in your source files, it means your library uses java 7 functions that cannot be compiled in java 6 bytecode. You're screwed.
Otherwise, you can now export a .jar file that you can use in your android project.
I have google about it online but didn't help and here I am posting my question. I have eclipse version platform version=3.8 which I downloaded from https://developer.android.com to create a android application. Now when I declare a arraylist <> in my program it doesn't recognize it. I read few questions here saying you need to have a version Eclipse version >= 3.1 to be able to increase Java compiler over 1.7. But now my question is when I already have 3.8 why the Java Compiler options are not showing above > 1.7 for me to select. Is android project and eclipse java project a separate thing? I opened eclipse and created this android application project. Appreciate your time and help.
You forgot to use new.
Android application should use java 1.5 or 1.6.
Android is not supporting 1.7.ArrayList<object> abcd= new ArrayList<object>();
And if you want to use java 1.7 in Java application project. Java 1.7 should be installed in your PC.
my guess would be that while you run eclipse itself with jdk 1.6, it's actually configured with a different default jre. see window->preferences->java->Installed JREs and make sure that the checked JRE is 1.6.
if the default JRE is indeed 1.6, chances are that it's a project specific setting. see that the project is configured to use the right jre.
Can any one tell me what shall I do when Eclipse shows this message:
[2012-02-28 10:57:34 - LMP] Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties.
Actually it was shown when I took a project from anther laptop then I added it to my workspace then I imported it to my eclipse.
Looks like you're using java 1.7 when 1.6 or 1.5 required.
Project > Properties > Java Compiler
Set compiler compliance level to 1.5 or 1.6.
You are using Java 7 on your project, but the VM on Android only supports Java 5~6.
Just have to configure eclipse to use Java 6 compliance level (: