java.lang.NullPointerException qsys-generate

also reproducible when pressing the "Generate HDL" button within qsys-edit GUI

Warning: fcm2_adc_device.jesd204: jesd204.jesd204_rx_frame_error must be exported, or connected to a matching conduit as it has unconnected inputs.
Warning: fcm2_adc_device.jesd204: jesd204.jesd204_rx_dlb_data must be exported, or connected to a matching conduit as it has unconnected inputs.
Warning: fcm2_adc_device.jesd204: jesd204.jesd204_rx_dlb_data_valid must be exported, or connected to a matching conduit as it has unconnected inputs.
Warning: fcm2_adc_device.jesd204: jesd204.jesd204_rx_dlb_kchar_data must be exported, or connected to a matching conduit as it has unconnected inputs.
Warning: fcm2_adc_device.jesd204: jesd204.jesd204_rx_dlb_errdetect must be exported, or connected to a matching conduit as it has unconnected inputs.
Warning: fcm2_adc_device.jesd204: jesd204.jesd204_rx_dlb_disperr must be exported, or connected to a matching conduit as it has unconnected inputs.
Warning: fcm2_adc_device.jesd204: Interrupt sender jesd204.jesd204_rx_int is not connected to an interrupt receiver
Warning: fcm2_net_dma: msgdma_rx declares system info address_map set to on interface mm_write that does not match declared in file fcm2_net_dma_msgdma_2.ip
Warning: fcm2_net_dma: msgdma_tx declares system info address_map set to on interface mm_read that does not match declared in file fcm2_net_dma_msgdma_1.ip
Warning: fcm2_net_dma.msgdma_rx: System Information doesn't match requirements of IP. Double-click to open System Info tab.
Warning: fcm2_net_dma.msgdma_tx: System Information doesn't match requirements of IP. Double-click to open System Info tab.
Warning: fcm2_dma: daq_dma declares system info address_map set to on interface mm_write that does not match declared in file fcm2_dma_msgdma_0.ip
Warning: fcm2_net_dma: msgdma_rx declares system info address_map set to on interface mm_write that does not match declared in file fcm2_net_dma_msgdma_2.ip
Warning: fcm2_net_dma: msgdma_tx declares system info address_map set to on interface mm_read that does not match declared in file fcm2_net_dma_msgdma_1.ip
Warning: fcm2_periph_eth_tse_0.eth_tse_0: To prevent potential performance issues, please ensure the reference clock to the LVDS uses the dedicated reference clock input within the same I/O bank directly. Manual reference clock promotion is not recommended
Error: Error writing qip report java.lang.NullPointerException
Error: Generation failed with exit code 1: 1 Error, 0 Warnings