Tensorflow错误，但已在R下检测到

如何解决Tensorflow错误，但已在R下检测到

在R下，我的Tensorflow仍然有问题，但没有找到任何解决方案。

model <- keras_model_sequential() %>% 
Error: Installation of TensorFlow not found.

Python environments searched for 'tensorflow' package:
 C:\Users\Mezeix\AppData\Local\r-miniconda\envs\r-reticulate\python.exe

You can install TensorFlow using the install_tensorflow() function.

但我有：

library(usethis)
library(devtools)
library(reticulate)
Sys.setenv(PATH = paste(Sys.getenv('PATH'),"C:/Users/Mezeix/AppData/Local/r-miniconda/envs/r-reticulate/Scripts",sep = ';'))
Sys.setenv(PATH = paste(Sys.getenv('PATH'),"C:/Users/Mezeix/AppData/Local/r-miniconda/envs/r-reticulate/Lib/site-packages/tensorflow",sep = ';'))
use_condaenv("r-reticulate",required = TRUE)
library(tensorflow)
library(keras)
reticulate::py_config()
python:         C:/Users/Mezeix/AppData/Local/r-miniconda/envs/r-reticulate/python.exe
libpython:      C:/Users/Mezeix/AppData/Local/r-miniconda/envs/r-reticulate/python37.dll
pythonhome:     C:/Users/Mezeix/AppData/Local/r-miniconda/envs/r-reticulate
version:        3.7.9 (default,Aug 31 2020,17:10:11) [MSC v.1916 64 bit (AMD64)]
Architecture:   64bit
numpy:          C:/Users/Mezeix/AppData/Local/r-miniconda/envs/r-reticulate/Lib/site-packages/numpy
numpy_version:  1.19.1
tensorflow:     C:\Users\Mezeix\AppData\Local\R-MINI~1\envs\R-RETI~1\lib\site-packages\tensorflow\__init__.p

NOTE: Python version was forced by use_python function

我安装了带有tensorflow 2.2的Keras 2.3：不起作用，所以我安装了早期版本的keras 2.2和Tensorflow 2.1：也没有作用。我安装了Python 3.8：不起作用，Python 3.7：不起作用。如果我使用标准安装进行安装，则同样的问题将无法解决。

install_keras(
  method = "conda",conda = "auto",version = "2.3.0")
library(tensorflow)
install_tensorflow(
  method = "conda",version = "2.2.0",envname = "r-reticulate",extra_packages = NULL,restart_session = TRUE,conda_python_version = "3.7")

如果我不使用use_condaenv（“ r-reticulate”，required = TRUE），则不会检测到Tensorflow。

如果有人知道如何解决，那就太好了。