version

This question already has an answer here: How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version 48 answers Ok so I loosely understand that 52.0 is Java 8, and that the exceptions means that some code is compiled with one version of java, and some with another. What I can't get my head around is which way around it is. Here's the stack trace that I get: Exception in thread "main" java.lang.UnsupportedClassVersionError: org/openrdf/model/ValueFactory : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader

java.lang.UnsupportedClassVersionError: Bad version number in . class file 出现这个问题时，要注意三个方面，网上都是简单的说了一下，现总结如下： 1、你所用的代码的jdk与目前的编译环境的jdk不一样，在当前工程上点右键选择"属性"，进去后在Java build path进去修改即可。 2、进到当前工程的属性后，选择"Java Compiler"进去后将"Compiler Compliance level"改成当前jdk的版本 3、windows->preferences->MyEclipse Enterprise Workbench->Servers->Tomcat->选择一人版本的tomcat->JDK->修改成当前使用的 JDK版本即可。 将以上三步都修改好后，一开始所提的错误就没有了，如果有的时候不改第三个，这个错误会一直存在。 来源： oschina 链接： https://my.oschina.net/u/241082/blog/62721

Can I tell what version (32 bit or 64 bit) of MySQL I am running by using Terminal? $ mysql --version mysql Ver 14.14 Distrib 5.1.45, for apple-darwin10.2.0 (i386) using readline 6.2 $ echo '\s' | mysql -------------- mysql Ver 14.14 Distrib 5.1.45, for apple-darwin10.2.0 (i386) using readline 6.2 Connection id: 105730 [...] Server version: 5.1.41 MySQL Community Server (GPL) [...] Uptime: 11 days 4 hours 2 min 6 sec Threads: 2 Questions: 1141270 Slow queries: 0 Opens: 6137 Flush tables: 1 Open tables: 56 Queries per second avg: 1.182 -------------- run this command in command line: mysql>

I have installed nginx on Debian 7 with the following steps sudo apt-get update sudo apt-get upgrade sudo apt-get install nginx sudo service nginx start I have confirmed that this starts nginx by accessing the hostip from the browser. How do I find out the version of nginx? nginx -v fails with the ' command not found error I verified that nginx exists in the usr/sbin directory and that directory is added to the $PATH variable It seems that your nginx hasn't been installed correctly. Pay attention to the output of the installation commands: sudo apt-get install nginx To check the nginx version,

I starting getting this error on my Angular app: The Angular Compiler requires TypeScript >=2.7.2 and <2.8.0 but 2.8.3 was found instead and when I try to downgrade typescript to the right version doing: npm install -g typescript@2.7.2 it says updated 1 package. when I verify typescript version using npm view typescript version I still get 2.8.3 I even tried removing typescript entirely using npm uninstall -g typescript but when I verify typescript version again npm view typescript version I still get 2.8.3 What are the commands to properly purge and restore typescript to a previous version

After updating Android Studio, I have .AndroidStudio1.3 and .AndroidStudio1.4 folders. If I delete .AndroidStudio1.3 folder, will this cause any problems? No, you're good to go removing the prior version's directory which in this case is the .AndroidStudio1.3 directory. On a side note, make sure you're importing settings from 1.3 when upgrading to 1.4. That will spare the Android Studio from re-downloading all the existing project dependencies you worked with before. It depends. Android Studio stores inside these folders the configuration files of the specified version. You can remove these

How do I know what version of Java is being run in Eclipse? Is there a way to write code to find out? Is "JRE System Library [JavaSE-1.6]" in "Package Explorer" the right version? The one the eclipse run in is the default java installed in the system (unless set specifically in the eclipse.ini file, use the -vm option). You can of course add more Java runtimes and use them for your projects The string you've written is the right one, but it is specific to your environment. If you want to know the exact update then run the following code: public class JavaVersion { public static void main

I have two python versions: Python 2.5 and Python 2.7. When I'm setting up django, I want to use Python 2.7, but django is using Python 2.5 somehow. How can I make sure that django use Python 2.7? I'm using Windows XP Change your PATH system environment variable to point to the version of Python you want to use. Changing your PATH will help, if you always call python directly, rather than relying on file association. For example: "python foo.py" will run the 'foo' script with whichever python is first on your PATH. However, if you just run "foo.py" , the handler associated in the registry, for