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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
- B4A (free) - Android development
- B4J (free) - Desktop and Server development
- B4i - iOS development
- B4R (free) - Arduino, ESP8266 and ESP32 development
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B4J Question Error after Update to latest ver B4J - incendio Aug 16, 2016 Hi guys, I just install latest ver B4J & when compile old project, I got this err : main._process_globals (java line: 74) java.lang.UnsupportedClassVersionError: org/eclipse/jetty/server/HttpConfiguration$Customizer : Unsupported major.minor version 52.0 On old B4J(forgot the version & JDK 1.7), this project compile without a problem. The project is JRDC, so it is without UI. Anyone know how to fix this? Thanks in advance.... B4A Question B4A 7.00 & major.minor version 52.0 - luke2012 Jun 29, 2017
java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader... B4A Question Update V 8.50 - DonManfred (first post) Nov 26, 2018 (1 reaction) Unsupported major.minor version 52.0
what java version are you using?... B4A Question Error During Compile java.lang.UnsupportedClassVersionError - DonManfred (first post) Feb 7, 2018 https://www.b4x.com/android/forum/pages/results/?query=+Unsupported+major.minor+version+52.0... B4A Tutorial android.jar / targetSdkVersion / minSdkVersion - Erel Oct 18, 2023 (93 reactions) tags: runtime permission, sdk version, Targetsdk, SDK, B4A code. minSdkVersion Set in the manifest editor. Default value is 5 (Android 2.0). This one is very... it without those changes. This means that an app with targetSdkVersion set to 14 (Android 4.0..., nor handle any other breaking change. Q: Will my app run on Android 4.0 if targetSdkVersion is set to 8.0? A: Yes. Q: Can I use new features without setting the targetSdkVersion to a higher version...There are several versioned components that affect the compilation process and the runtime behavior... B4J Question [SOLVED] error using B4J Packager 1.50 - Erel (first post) Dec 19, 2018 Unsupported major.minor version 52.0
52.0 = Java 8.
Seems like you are using Java 7.... B4A Library [Class] CameraEx - Extends the camera library functionality - Erel (first post) Oct 22, 2017 https://www.b4x.com/android/forum/pages/results/?query=Unsupported+major.minor+version+52.0... B4A Question Compile error - Erel (first post) Dec 24, 2017 (1 reaction) A quick search will reveal the answer: https://www.b4x.com/android/forum/pages/results/?query=Unsupported+major.minor+version+52.0
You need to install Java 8.... B4A Question Can't increase MaxRamForDex - DonManfred (first post) Feb 28, 2018 Then it seems you need to use a newer version of Java 8
Check the results here https://www.b4x.com/android/forum/pages/results/?query=Unsupported+major.minor+version+52.0... Other B4A v7.00 BETA is available for download - Erel (first post) May 17, 2017 java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
You need to install Java 8 and configure the IDE to use it under Tools - Configure Paths.... Page: 1 2 3 4 5 6 7 |