MacOS stm32cubeprogrammer "Error: Could not find or load main class com.st.app.Main"

[RBoer]

On a more or less clean MacOS Mojave 10.14.6, installed the Oracle JDK (jdk-12.0.2_osx-x64_bin.dmg), installed the stm32cubeprogrammer (using the workaround via commandline). Now after installation, when starting it gives an error "The application “STM32CubeProgrammer�? can’t be opened."

Opening /Applications/.../Stm32CubeProgrammers/Contents/MacOS/bin/STM32CubeProgrammer

Shows the following problem in a terminal-box:

/Applications/STM32CubeProgrammer/STM32CubeProgrammer.app/Contents/MacOs/bin/STM32CubeProgrammer ; exit;

Error: Could not find or load main class com.st.app.Main

Caused by: java.lang.NoClassDefFoundError: javafx/application/Application

logout

Saving session...

...copying shared history...

...saving history...truncating history files...

...completed.

[Process completed]

In another post someone was having the same problem on Linux and the advice was to install javajfx, but as mentioned, it is said the be included in the 12.0.2 JDK... Any advice on how to get it to run?

[ffabi]

Unfortunately I have the same problem on MacOS. I would appreciate if someone knows a solution for this problem.

[RMcGi]

I also have this problem.

I read that javajfx is no longer included with the 12.0.2 JDK, but I'm unsure how to properly install javajfx.

[APach.880]

Facing same problem. Will post the solution if I find any

[APach.880]

Installed JDK 8 and it started fine.

Download link - https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

java version "1.8.0_231"

Java(TM) SE Runtime Environment (build 1.8.0_231-b11)

Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)

[WWale.1]

using Apach.880's link and uninstalling my current Java version (13), I was able to get this to work. Here's how to uninstall specific versions of Java:

https://www.youtube.com/watch?v=AfOKYjcaf0U&app=desktop

I only used the first 4 terminal inputs. Thanks for all the help. Feels great after sinking about 2 hours into this

[ChrisH]

Still the same problem after a year and no one cares from ST, nice.

[Chandrashekar C]

I face the same issue, do we have any solution for this?

[FBusy.1]

I used openjfx-15 solved this problem,download openjfx-15_linux-x64_bin-sdk.zip from https://openjfx.io/​, unzip to somewhere(such as :/usr/opt/),then modify the program startup file(${Program installation directory}/bin/STM32CubeProgrammer),may need sudo ,replace the last line "java -jar $DIR/STM32CubeProgrammerLauncher" with "java --module-path /usr/opt/javafx-sdk-15/lib --add-modules=javafx.base --add-modules=javafx.fxml --add-modules=javafx.graphics --add-modules=javafx.media --add-modules=javafx.swing --add-modules=javafx.web --add-modules=javafx.controls -jar $DIR/STM32CubeProgrammerLauncher", "/usr/opt/javafx-sdk-15/lib" is your openjfx's path, and my javasdk is jdk11, I also tried jdk12, also worked well.

[DBitt.1]

I'm confused. I don't have a launcher file that I can find to edit. I downloaded the macos files for openjfx jmods and sdk. Still not sure what to do here. Thanks.