After a 5 year absence from b4A I am attempting to restart development for Android using B4A.
My approach was to start fresh since I have not used B4A at all over the past number of years and forgotten most of what I learned 5 years ago. I followed the instruction in the B4X booklets for B4A. (Thanks Klaus and Eril)
The sample compiled cleanly but when I attempt to run it I get the following error:
In the configuration tool the android jar path is “C:\Android\platforms\android-28\android.jar”. I checked using file explorer and the only version installed is android 28 and the jar file exists in the directory.
I have spent many hours in the forum and on the web seeking a solution with no success. There were references to this issue that very significantly out of date so I am reluctant to make changes based on such dated information.
Any help or guidance would be greatly appreciated.
My approach was to start fresh since I have not used B4A at all over the past number of years and forgotten most of what I learned 5 years ago. I followed the instruction in the B4X booklets for B4A. (Thanks Klaus and Eril)
- Downloaded and installed Open JDK 11 (installed in C:\Java)
- Downloaded and installed the SDK (installed in C:\Android)
- Using SDK Manager installed all recommended items (also installed in C:\Android)
- Did a clean install of B4A (licensed version of 9.50)
- Configured the paths using the Paths Configuration tool
- Checked that the Paths were properly configured using file explorer
- Created the "MyFirstApplication" sample
- Set up and deployed B4A bridge
The sample compiled cleanly but when I attempt to run it I get the following error:
B4X:
B4A Version: 9.50
Java Version: 11
Parsing code. (0.00s)
Building folders structure. (0.01s)
Compiling code. (0.00s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
(AndroidX SDK)
Generating R file. (0.00s)
Compiling generated Java code. (1.01s)
Convert byte code - optimized dex. (0.32s)
Packaging files. (0.23s)
Copying libraries resources (0.00s)
Signing package file (debug key). Error
jarsigner: unable to open jar file: bin\temp.ap_In the configuration tool the android jar path is “C:\Android\platforms\android-28\android.jar”. I checked using file explorer and the only version installed is android 28 and the jar file exists in the directory.
I have spent many hours in the forum and on the web seeking a solution with no success. There were references to this issue that very significantly out of date so I am reluctant to make changes based on such dated information.
Any help or guidance would be greatly appreciated.