RStudio Connect:无法在R版本4.0.0中部署

我最近将我的R版本更新为4.0.0，此后我无法将任何内容部署到RStudio Connect。我尝试部署不同的R降价项目，几周前效果很好，结果总是一样的

Deploy选项卡显示如下内容：

Preparing to deploy document...DONE
Uploading bundle for document: 4102...DONE
Deploying bundle: 22378 for document: 4102 ...
[Connect] Building R Markdown document...
[Connect] Bundle requested R version 4.0.0; using /opt/R/3.6.2/bin/R which has version 3.6.2
[Connect] 2020/05/12 08:06:51.130729666 Using user agent string: 'RStudio R (3.6.2 x86_64-pc-linux-gnu x86_64 linux-gnu)' 
[Connect] 2020/05/12 08:06:51.740796898 linux distribution: Ubuntu 18.04.4 LTS (bionic) 
[Connect] 2020/05/12 08:06:51.741851066 # Validating R library read / write permissions --------------------------------
[Connect] 2020/05/12 08:06:51.742375910 R version: 3.6.2
[Connect] 2020/05/12 08:06:51.762098813 # Validating managed packrat installation --------------------------------------
[Connect] 2020/05/12 08:06:51.762572854 Vendored packrat archive: /opt/rstudio-connect/ext/R/packrat_0.5.0-25_448aafd176ec6cbde307f556c91b39e5a1c94f9d.tar.gz
[Connect] 2020/05/12 08:06:51.801389677 Vendored packrat SHA: 448aafd176ec6cbde307f556c91b39e5a1c94f9d
[Connect] 2020/05/12 08:06:51.803332420 Managed packrat SHA:  448aafd176ec6cbde307f556c91b39e5a1c94f9d
[Connect] 2020/05/12 08:06:51.804639071 Managed packrat version: 0.5.0.25
[Connect] 2020/05/12 08:06:51.805725002 Managed packrat is up-to-date.
[Connect] 2020/05/12 08:06:51.806122325 # Validating packrat cache read / write permissions ----------------------------
[Connect] 2020/05/12 08:06:52.187402703 Audited package hashes with local packrat installation.
[Connect] 2020/05/12 08:06:52.225422249 # Installing required R packages with `packrat::restore()` ---------------------

然后，packrat安装几个缓存包，一段时间后，它会显示以下内容：

[Connect] 2020/05/12 08:10:03.136084340 Warning message:
[Connect] 2020/05/12 08:10:03.136181457 In packrat::restore(overwrite.dirty = TRUE, prompt = FALSE, restart = FALSE) :
[Connect] 2020/05/12 08:10:03.136208254   The most recent snapshot was generated using R version 4.0.0

在此之后，部署将一直保持加载，没有任何更改，如果我尝试在Connect中打开项目，则会收到错误504

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我怎样才能解决这个问题？我必须回到R版本3.6.2吗？

非常确定您需要让管理员在服务器上安装R v4.0。您不需要升级R，您可以安装多个版本。但是，与可由服务器自动更新的软件包不同，R的基本版本需要手动安装。

如果您已连接，是否支持RStudio？我可能会直接联系他们。