我尝试在Tkinter中创建一个表，并且运行得很好。但是，任何在表后打包的小部件都不会生成，而是抛出一个错误。我该如何修复这个问题？
这是表代码：

class Table:
  def __init__(self,root,rows,columns,lst):
    for i in range(rows):
      for j in range(columns):
        self.e = Entry(root, width=20, font=('Arial',16,))
        self.e.grid(row=i, column=j)
        self.e.insert(END, lst[i][j])

这是表生成代码，之后：

thislist = [
      ("Title", name),
      ("Company Size", vol),
      ("Price per share", price)
    ]
    row_amount = 3
    col_amount = 2
    Table(root1, row_amount, col_amount, thislist)
    color = 'red' if percent < 0 else 'green' if percent > 0 else 'gray'
    Label(root1, text = str(percent) + '%', fg = color).pack()

这就是错误：

Exception in Tkinter callback
Traceback (most recent call last):
  File "/nix/store/2vm88xw7513h9pyjyafw32cps51b0ia1-python3-3.8.12/lib/python3.8/tkinter/__init__.py", line 1892, in __call__
    return self.func(*args)
  File "main.py", line 77, in search_function
    layout(name.upper())
  File "main.py", line 105, in layout
    Label(root1, text = str(percent) + '%', fg = color).pack()
  File "/nix/store/2vm88xw7513h9pyjyafw32cps51b0ia1-python3-3.8.12/lib/python3.8/tkinter/__init__.py", line 2396, in pack_configure
    self.tk.call(
_tkinter.TclError: cannot use geometry manager pack inside . which already has slaves managed by grid