I downloaded a JDK from Oracle and try to put it into Unity's JDK path. I see posts that says you have to choose a path inside the JavaVirtualMachine. But I can't find anything in JavaVirtualMachine. I typed the command /usr/libexec/java_home in the terminal and it shows me this - /Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home
It is suppose to be the path of the JDK. But as I mentioned above, I checked the finder and there is nothing inside the JavaVirtualMachine. Is there anything I am probably missing or done wrong? Any help will be greatly appreciated!
You need to use Unity Hub and download/install the corresponding Android module to the Unity version you are using for your project.
Related
I understand that Android doesn't use the full jdk, but I want to add javax to my Android project. More specifically I want to add javax.tools. I can't find a download for it though. Do I have to add the entire JDK as an external library to access javax.tools? Or is none of this possible?
when you installing jdk in your system , and then define jdk's path to AndoridStudio .
so all of your android projects included jdk as an external library. so you don't need to do any thing else.
just check your jdk status by this way:
Open command prompt and type java -version. If you get the version info, Java is installed correctly and PATH is also set correctly.
and if you don't get:
Go to start menu-->System-->Advanced-->Environment Variables and define your jdk path .
and finally define it in your project Structure in Android Studio .
I am trying to get Android Studio installed on Cent OS 6.5. I have downloaded and unzipped the package to /usr/share/applications/Android-studio/.
I have installed jdk 8 in /usr/share/applications/ (as I understand you just unpack it there, no need to compile or execute anything...?)
I have appended /etc/profile with "JAVA_HOME=/usr/share/applications/jdk1.8.0_1118"
When I execute the studio.sh file the app begins to run (I see some Java messages in the shell) then I get the error:
"JDK Required: 'tools.jar' seems to be not in Studio classpath.
Please ensure JAVA_HOME points to JDK rather than JRE".
I think this means something is wrong with my JDK files but I don't know what. I have followed multiple tutorials online about how to fix this error including the guides on Android studio and Oracle's websites and as far as I can tell I've done everything correctly, but I am still getting this error. What am I missing?
Thank you for your help.
After looking through some answers to similar questions (that didn't receive any votes so I had overlooked them previously) I solved the issue. I had to copy the 'tools.jar' file from /usr/share/applications/jdk1.8.0_1118/lib to /usr/share/applications/android-studio/lib. That did it. It is up and running. Apparently this file is missing from the package downloaded from the android studio website. I hope they fix that soon and save future users hassle.
I have installed Java 8 on my computer but Android Studio doesn't find it. When I execute the installer of Android Studio I only can see an screen in which I can see an introduction and when I press "Next" another screen it's displayed in which says:
We could not detect a Java Development Kit (JDK) v7 or newer on your system. Please browse to its path if known.
So I searched my JDK and when I press the button "Next" I get the following message:
Sorry, we still could not detect a valid JDK, which we need to proceed.
If setting your JDK path manually, make sure you have browsed to a parent directory that contains a "bin\java.exe" whose version reports 1.7 or higher when you run "java.exe -version".
After that, I go to the console and execute the command "java.exe -version". It gives to me:
java version "1.8.0_60"
So I don't know why it doesn't find my JDK. I also tried adding some Environment Variables:
JAVA_HOME: C:\Program Files\Java\jre1.8.0_60\
JDK_HOME: C:\Program Files\Java\jre1.8.0_60\
But it still doesn't find it. How can I fix it?
Note: I'm using Windows 10 as OS.
Thanks in advance!
I think your JAVA_HOME variable is set to the wrong thing. Mine is:
JAVA_HOME C:\Program Files\Java\jdk1.8.0_60
I also have a PATH variable set as follows:
PATH %JAVA_HOME%\BIN
I do not have a JDK_HOME variable.
Try that and see if it works.
(I recently installed Android Studio and had the same problem, even though I had Java 7 installed. So I downloaded Java 8 and manually updated the JAVA_HOME variable.)
I had the same problem when trying to install Android Studio bundle v2.1 (143.2915827-windows) on a Windows 10 machine with a JDK at a non-standard location (the JDK on a path containing spaces). After manually selecting the path, the installer would complain that it could still not find a JDK. I solved it by manually enclosing the selected path with double quotes by typing in the editable textbox.
This drove me nuts for a couple of days. I was not able to resolve the issue through the Android studio installer, but found a workaround:
Go to http://developer.android.com/sdk/index.html
Instead of downloading "Android Studio package" (the exe file), scroll down and select "SDK tools package" (the zip file).
This work perfectly and allows you to select all the packages you want to download, including the packages installed by the installer.
What worked for me. I recieved the same error message and went to directly install the java, without closing the installation of Android studio. then tried to find the path. so I closed out the window for Android Studio and Reopened the download file and it automatically detected it. This might not work for everyone but worth a try. easier then messing with everthing else.
I'm trying to run eclipse on my Mac OS X. I've been doing some Android programming on Eclipse lately, and today wanted to do some development on Java. However, to my surprise, Eclipse says there's no JRE/JDK installed. I don't know how this is possible, since my android projects have worked very well so far, and even now. I've tried the following items:
Checking java version through the Mac terminal. It says java version "1.8.0_20" is installed. Here's the screenshot.
I've checked the Java version through the Java Control Panel in System Preferences. Again, same thing:
I know that when there's no JRE visible in Eclipse, it can be manually entered through the "add" option under preferences > Java > Installed JREs in Eclipse. But although I can find the Contents folder in this path: /Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/home/contents, when I attempt to manually add this in Eclipse, the Java folder under users/library just doesn't show up. I have no idea why this is happening. Here are some screenshots, just in case:
As you can see, the Java folder just doesn't show up under Library in the above screenshot.
Lastly, I've also tried to hit "Search" in Eclipse (same place as "Add" in one of the screenshots above), but "Search" doesn't find anything at all.
I've gone through existing answers on SO which deal with similar problems. The only thing which I haven't done seems to be about setting a path variable, but they were all in Windows OS, so not sure if it applies in my situation.
I'd really appreciate any help on this.
Update 1: According to what has been pointed out so far, I tried copy-pasting the suggested path. But the error I get is: The home directory does not exist.
Here's the screenshot:
You are trying to find the JRE in a wrong Library directory as Library directory maybe present in more than one place. Just copy paste the jre path in 'jre home' input as
/Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/home/contents/Home/jre/
EDIT: To find where is your java installed on Mac, run the following command:
echo $(/usr/libexec/java_home)
it should return something like this:
/Library/Java/JavaVirtualMachines/jdk1.7.0_67.jdk/Contents/Home
append jre to the end of this path to build JRE home path:
/Library/Java/JavaVirtualMachines/jdk1.7.0_67.jdk/Contents/Home/jre
I'm using Windows-7 64 bit and I have installed this(jdk-7u45-windows-x64) updated JDK in my system. My SDK was updated upto API level 18(Android 4.3).
When i click on SDK manager in the eclipse, it does not start. I tried open it directly with Administrator permission also. But it does not start. I had tried to set the variable path like these.
But I'm always getting the same error like this.
After I found that in my find_java.exe get the java path from windows\system32 as shown below .
How can I set the Java path to my installed java folder.
Need some one help to figure it out. For Reference look at this link also.
SDK manager not starting
While setting the environment variable try JAVA_HOME variable pointing the bin directory.
because the android checks the java.exe in particular path.
I am new to android,As long as i studied ,Android requires Java 1.5 or 1.6. You are using 1.7
Google does not add complete jdk 1.7 support to android system requirement(some api are exception) .. It does not mean that you should not have jdk 1.7. you should also have 1.6 jdk for compiler compilance. it is a better way to avoid using 1.7 jdk ,if u dont want jdk 1.7 features.
http://developer.android.com/sdk/index.html see the system requirements and even if u developed using 1.7...when you installing your app in real device .we may face signing issue.
you may use some jar file which targetting java 1.7. but android system runtime(dalvik jvm) does not know how to process those files which means dex tool wont process those files which belongs to 1.7 and it wont create classes.dex file..hope it will help somehow
From the error you have posted it seems the problem is only with the path settings.
Add the path upto the bin folder of your jdk - C:\Program Files\Java\jdk1.7.0_45\bin and restart the eclipse.
Please verify if your SDK Location in the Window->Preferences->Android points to the correct SDK path.
Download latest android bundle from http://developer.android.com/sdk/index.html.
and replace new sdk folder with old sdk folder from android bundle folder.
now it's may work.
Finally Reinstalled my OS and Installed JDK 1.6. Then I have added my updated SDK to my ADT. It works fine now.
I've had the same issue, and this solved it