我想使用Jupyter笔记本使用软件包。首先，我需要创建一个已经完成的虚拟环境，然后在其中安装Gurobi和CPLEX。使用以下命令：
conda install -n virtualenvname ibmdecisionoptimization cplex for CPLEX
以及古罗比的这些：conda config --add channels http://conda.anaconda.org/gurobi conda install gurobi
我在下面收到错误消息，因为它们花费的时间太长，所以我总是先终止它们，然后再进行进一步处理。如果不创建虚拟环境，我就不会遇到这个问题。
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed
您能指导我解决这个问题吗？