error 54 when compile

Seems like you have an old version of BAShared.jar in your additional libraries path.

yes erel, thank for your help, i copy and overwrite the libraries directory with one old libraries.

HELP with error on compiling

I get this message on all my attempts to compile anything

Compiling code. 0.12
Compiling layouts code. 0.01
Generating R file. 0.01
Compiling generated Java code. Error
javac 1.7.0_02
src\anywheresoftware\b4a\samples\slidingpanels\main.java:54: error: cannot find symbol
processBA.sharedProcessBA.activityBA = null;
^
symbol: variable sharedProcessBA
location: variable processBA of type BA
1 error

I have no idea what BAshared.jar is or how to fix it. Any help would be gratefully accepted.
Cheers

This error happens because you have an old version of B4AShared.jar in your additional libraries folder (the folder that is set under Tools - Configure paths). You should just delete this file as there is a newer one in the internal libraries folder.

This issue will not happen any more in v2.20 as the internal libraries folder will be checked first.