报错：AttributeError: 'FirstTestDockWidget' object has no attribute 'pushButton_j1616'
from qgis.PyQt.QtCore import QSettings, QTranslator, QCoreApplication, Qt
from qgis.PyQt.QtGui import QIcon, QColor #####
#from PyQt5.QtWidgets import (QMainWindow, QTextEdit,QAction,QFileDialog,QApplication)
from qgis.PyQt.QtWidgets import QAction,QFileDialog
# Initialize Qt resources from file resources.py
from .resources import *
# Import the code for the DockWidget
from .first_test_dockwidget import FirstTestDockWidget
import os.path
import os
import subprocess
from qgis.core import *
from qgis.utils import iface
from PyQt5.QtCore import QSettings, QTranslator, QVariant, QCoreApplication
from qgis.core import QgsRasterLayer
from PyQt5.QtCore import QFileInfo ##这是开头引入的库
。。。
def j_16():
rlayer1 = iface.addRasterLayer(DATA_PATH+'\\data\\compsite\\road_compsite_num_geo.png', 'road')
rlayer2 = iface.addRasterLayer(DATA_PATH+'\\data\\compsite\\veg_compsite_num_geo.png', 'veg')
setcolor(rlayer1,1,255,0,255)#road
setcolor(rlayer2,2,0,255,0)#veg ##定义了一个要显示的图层
。。。
self.dockwidget.pushButton_j16.clicked.connect(j_16) ### 设置了对应的显示按钮
self.dockwidget.pushButton_j1616.clicked.connect(m_1) ###
self.dockwidget.pushButton_j161616.clicked.connect(m_1) ###
结果一直报错，还请各位大佬接待，谢谢
