Ubuntu20.04 conda安出错，成功解决：solving environment：failed with initial frozen solve.Retrying with flexibl

Ubuntu20.04 conda安装出错

成功解决conda安装 Pytorch 时提示：solving environment：failed with initial frozen solve.Retrying with flexible solve

遇到的问题

Solving environment: failed with initial frozen solve. Retrying with flexible solve.

这是我在安装 Pytorch 过程中遇到的，总是环境不对，所以就查阅了一下，后面经过尝试，问题解决了，来记录一下，备忘。

一、先说说我成功解决的方法：

更新conda:

切换到 root 用户，然后输入 conda updata，根据调出来的提示信息，更新conda,如下：

// 切换到 root 用户
su root # 这里会提示输入密码，输入 root 用户的密码即可

// 切换到 root 用户之后，更新 conda
conda update 

# 输入之后等待他完成之后就可以继续安装 pytorch 了

###############分割线########################
# 这里也补充说明一点我为什么要切换到 root 用户
===》单纯的是因为我用 sudoer 账号不能执行，说他没有权限，
你们也可以尝试不用切换到 root 账号看是否能行

// sudo conda update
如果后面的 verify 显示的是 done ，那就没问题，如果显示是filed 那可以尝试我前面说的这个方法

二、我也说说我用了没起作用的方法，如果上面的方法不适用，可以参照：

1、更新conda:

这里和上面不同之处在于我输入的命令不同：

# 这个命令会执行的很快，但是更新之后对解决问题不起作用
conda update -n base conda

2、设置镜像优先权:

conda config --set channel_priority flexible

**三、还有一些我查了，但是还没来得及用，如果上述方法都没能解决，可以尝试（黑色代码框里显示的是链接地址）：

1、重装并更新conda:

# 这个使用 widows 或者有图形界面的 Linux 系统
https://blog.csdn.net/weixin_41622348/article/details/100582862?ops_request_misc=&request_id=&biz_id=102&utm_term=Solving%20environment:%20failed%20wi&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduweb~default-1-100582862.pc_search_result_hbase_insert&spm=1018.2226.3001.4187

2、python 与 conda 版本冲突，将python版本换低一点:

https://blog.csdn.net/weixin_43414981/article/details/102956688?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163616560316780264037937%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=163616560316780264037937&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~rank_v31_ecpm-13-102956688.pc_search_result_hbase_insert&utm_term=Solving+environment%3A+failed+with+initial+frozen+solve.+Retrying+with+flexible+solve&spm=1018.2226.3001.4187

3、python 与 conda 版本冲突，将conda版本换低一点:

https://blog.csdn.net/Pegessi/article/details/108781818?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163616560316780264037937%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=163616560316780264037937&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~rank_v31_ecpm-17-108781818.pc_search_result_hbase_insert&utm_term=Solving+environment%3A+failed+with+initial+frozen+solve.+Retrying+with+flexible+solve&spm=1018.2226.3001.4187

参考：
https://blog.csdn.net/Sakura_Logic/article/details/108312146?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163616560316780264037937%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=163616560316780264037937&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allfirst_rank_ecpm_v1~rank_v31_ecpm-3-108312146.pc_search_result_hbase_insert&utm_term=Solving+environment%3A+failed+with+initial+frozen+solve.+Retrying+with+flexible+solve&spm=1018.2226.3001.4187
https://blog.csdn.net/weixin_43414981/article/details/102956688?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163616560316780264037937%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=163616560316780264037937&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allfirst_rank_ecpm_v1~rank_v31_ecpm-13-102956688.pc_search_result_hbase_insert&utm_term=Solving+environment%3A+failed+with+initial+frozen+solve.+Retrying+with+flexible+solve&spm=1018.2226.3001.4187
https://blog.csdn.net/weixin_41622348/article/details/100582862?ops_request_misc=&request_id=&biz_id=102&utm_term=Solving%20environment:%20failed%20wi&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduweb~default-1-100582862.pc_search_result_hbase_insert&spm=1018.2226.3001.4187
https://blog.csdn.net/Pegessi/article/details/108781818?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522163616560316780264037937%2522%252C%2522scm%2522%253A%252220140713.130102334…%2522%257D&request_id=163616560316780264037937&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_allfirst_rank_ecpm_v1~rank_v31_ecpm-17-108781818.pc_search_result_hbase_insert&utm_term=Solving+environment%3A+failed+with+initial+frozen+solve.+Retrying+with+flexible+solve&spm=1018.2226.3001.4187