Opencores I2C adapted to Avalon for NIOS-II 9.0

Hello,

I use the version 9.1 of quartus and the opencore I2C master (vhdl) but I have the follows error and warning :

Error: i2c_master_0.interrupt_sender: associatedAddressablePoint out of range

Error: i2c_master_0.interrupt_sender: Interrupt not associated with addressable connection point.

Error: i2c_master_0.interrupt_receiver: associatedAddressablePoint out of range

Error: i2c_master_0.interrupt_receiver: Interrupt not associated with addressable connection point.

Warning: i2c_master_0.clock_sink: Signal reset appears 2 times (only once is allowed)

Warning: i2c_master_0.interrupt_receiver: Interface has no signals

Warning: cpu_0.data_master/i2c_master_0.avalon_slave_0: i2c_master_0.avalon_slave_0 does not have byteenables. Narrow (less than 32-bit) writes from cpu_0.data_master will result in spurious writes to i2c_master_0.avalon_slave_0