C Chris2 Well-Known Member Licensed User Longtime User Mar 2, 2022 #1 I have an app which uses UCanAccess. It runs fine through the IDE in Debug & Release modes but when running the packaged app (via run_debug.bat), it fails with: B4X: Copy Error: Unable to load main class test.test.test.main in module b4j java.lang.NoClassDefFoundError: javafx/application/Application I've narrowed the problem right down to the additional jars required for UCanAccess, specifically the hsqldb-2.6.1.jar which is now included after the update (at my request, sorry!) in Nov last year - https://www.b4x.com/android/forum/threads/opening-ms-access-databases-mdb.107963/post-862370. The attached project demonstrates the problem. A packaged app fails to run with the error above, but if you comment the line B4X: Copy #AdditionalJar: hsqldb-2.6.1 then the packaged app runs OK. I note that the first comment from @Erel in the UCanAccess thread says Instructions were updated based on a new version of the libraries that will work with B4JPackager11. Note that you need to add several files to the Files folder. Click to expand... Does something in the index_codes_***.txt files need updating to accommodate hsqldb-2.6.1.jar? Attachments test.zip test.zip 228.5 KB · Views: 505 Last edited: Mar 2, 2022
I have an app which uses UCanAccess. It runs fine through the IDE in Debug & Release modes but when running the packaged app (via run_debug.bat), it fails with: B4X: Copy Error: Unable to load main class test.test.test.main in module b4j java.lang.NoClassDefFoundError: javafx/application/Application I've narrowed the problem right down to the additional jars required for UCanAccess, specifically the hsqldb-2.6.1.jar which is now included after the update (at my request, sorry!) in Nov last year - https://www.b4x.com/android/forum/threads/opening-ms-access-databases-mdb.107963/post-862370. The attached project demonstrates the problem. A packaged app fails to run with the error above, but if you comment the line B4X: Copy #AdditionalJar: hsqldb-2.6.1 then the packaged app runs OK. I note that the first comment from @Erel in the UCanAccess thread says Instructions were updated based on a new version of the libraries that will work with B4JPackager11. Note that you need to add several files to the Files folder. Click to expand... Does something in the index_codes_***.txt files need updating to accommodate hsqldb-2.6.1.jar?
Solution Erel Mar 3, 2022 I've uploaded a new package with an updated hsqldb-2.6.1.jar file. Please try it. It compiles / builds fine. I haven't tested it with an actual Access db.
I've uploaded a new package with an updated hsqldb-2.6.1.jar file. Please try it. It compiles / builds fine. I haven't tested it with an actual Access db.
Erel B4X founder Staff member Licensed User Longtime User Mar 3, 2022 #2 I've uploaded a new package with an updated hsqldb-2.6.1.jar file. Please try it. It compiles / builds fine. I haven't tested it with an actual Access db. Upvote 0 Solution
I've uploaded a new package with an updated hsqldb-2.6.1.jar file. Please try it. It compiles / builds fine. I haven't tested it with an actual Access db.
C Chris2 Well-Known Member Licensed User Longtime User Mar 4, 2022 #3 The packaged app seems to be working fine now, thanks @Erel! Upvote 0
