(FunctionClauseError) no function clause matching in anonymous fn/1 in EEx.Compiler.tokenize/6

My project works under Phoenix1.6.6. After upgraded to 1.6.12, It compiled error, and I cannot understand the compilation result information, as followed:

== Compilation error in file lib/linlang_web/views/user_session_view.ex ==
** (FunctionClauseError) no function clause matching in anonymous fn/1 in EEx.Compiler.tokenize/6

    The following arguments were given to anonymous fn/1 in EEx.Compiler.tokenize/6:

        # 1
        {{1, 71}, [102, 111, 117, 110, 100, 32, 113, 117, 111, 116, 101, 100, 32, 107, 101, 121, 119, 111, 114, 100, 32, 34, 'social', 34, 32, 98, 117, 116, 32, 116, 104, 101, 32, 113, 117, 111, 116, 101, 115, 32, 97, 114, 101, 32, 110, 111, 116, 32, ...]}

    (eex 1.14.0) lib/eex/compiler.ex:68: anonymous fn/1 in EEx.Compiler.tokenize/6
    (elixir 1.14.0) lib/enum.ex:975: Enum."-each/2-lists^foreach/1-0-"/2
    (eex 1.14.0) lib/eex/compiler.ex:68: EEx.Compiler.tokenize/6
    (eex 1.14.0) lib/eex.ex:218: EEx.compile_string/2
    (phoenix_view 1.1.2) lib/phoenix/template.ex:419: Phoenix.Template.compile/3
    (phoenix_view 1.1.2) lib/phoenix/template.ex:197: anonymous fn/4 in Phoenix.Template."MACRO-__before_compile__"/2
    (elixir 1.14.0) lib/enum.ex:2468: Enum."-reduce/3-lists^foldl/2-0-"/3
    (phoenix_view 1.1.2) expanding macro: Phoenix.Template.__before_compile__/1

And in the user_session_view.ex file is just:

defmodule LinlangWeb.UserSessionView do
  use LinlangWeb, :view
end

Can anyone enlight me?

Thanks!