Ranorex 构建失败 9.4.1 找不到框架“.NETFramework,Version=v4.7.2”的参考程序集

Ranorex build fails 9.4.1 The reference assemblies for framework ".NETFramework,Version=v4.7.2" were not found

出错
The reference assemblies for framework ".NETFramework,Version=v4.7.2" were not found. To resolve this, install the SDK or Targeting Pack for this framework version or retarget your application to a version of the framework for which you have the SDK or Targeting Pack installed. Note that assemblies will be resolved from the Global Assembly Cache (GAC) and will be used in place of reference assemblies. Therefore your assembly may not be correctly targeted for the framework you intend. (MSB3644) - C:\Program Files (x86)\Microsoft Visual Studio17\Professional\MSBuild.0\Bin\Microsoft.Common.CurrentVersion.targets:1179,5

我通过在“项目”>“项目选项”>“编译选项卡降级目标”>“.Net Framework”下从 4.7.2 降级到 4.6.2 来解决这个问题