I have an issue when i tried to to upload code in stm32 while uploading i pressed the reset button and display this message without flashing.
Here is the screenshot .
how i can solve this problem and upload
I can't help you as I'm not familiar with the board. You've posted this in the IDE 1.x section while you're using IDE 2.x; however I've moved it to Avrdude, stk500, Bootloader issues - Arduino Forum as that is more suitable when it comes to upload problems.
It has been reported a few times in this forum that the Serial Monitor must be closed to be able to download.
See bottom left corner click on the X.
I have closed the serial monitor before uploading sketch but it still the same error .
I'm setting the
BOOT 0 pin ----> 0
BOOT 1 pin ----> 0 and using serial to upload.
Now you wait for the Experts to join in and solve this.
Good luck.
okay thanks
@shehab_iot
Do you use the ST Link programmer?
Then you can load the HEX file from the IDE compilation and program the Bluepill direct.
can i use the st link without flashing bootloader
I might be wrong but I think the Bootloader is only need when programming from the USB.
Try it and see what happens.
when i connected the stm32 right to st link i seems me like this in screen
should i earse the flash before program here ?
I dont have the St Link programmer with me , but normally I just click on "Program and Verify" the other settings is default.
Yes the screen looks familiar now just hit START.
Move the two jumpers back ,I just keep them at that position and program. 
Did it work?
yes it works thanks a lot for your help 
