エラー現在、スイッチは設定されていません。 「opamswitch」を使用してスイッチを設定またはインストールしてください

現在、tezosノードを更新するときにこの種のエラーメッセージが表示されます.

アップグレード手順は次のとおりです. 1.メインの〜/tezosディレクトリを〜/tezos-newという新しいディレクトリにコピーします. 2.以下に示すようにupdateコマンドを呼び出します. 3.ノードを停止し、ディレクトリ名を変更して、ノードを再開します.

このコマンドの使用:

cd〜/tezos-新しい＆amp;＆amp;eval $(opamenv)＆amp;＆amp;きれいにする＆amp;＆amp;git checkout メインネット＆amp;＆amp;git pull＆amp;＆amp;きれいにする＆amp;＆amp;build-deps＆amp;＆amp;を作成しますeval $(opam env)＆amp;＆amp; ＆amp;＆amp;を作成しますcd〜

次のようなエラーが発生します:

 [ERROR] No switch is currently set. Please use 'opam switch' to set or install a switch
make: dune: Command not found
Makefile:118: recipe for target 'clean' failed
make: [clean] Error 127 (ignored)
make[1]: Entering directory '/home/tezos/tezos-new/docs'
make[1]: Leaving directory '/home/tezos/tezos-new/docs'
Already on 'mainnet'
Your branch is up to date with 'origin/mainnet'.
Already up to date.
[ERROR] No switch is currently set. Please use 'opam switch' to set or install a switch
make: dune: Command not found
Makefile:118: recipe for target 'clean' failed
make: [clean] Error 127 (ignored)
make[1]: Entering directory '/home/tezos/tezos-new/docs'
make[1]: Leaving directory '/home/tezos/tezos-new/docs'
[ERROR] No switch is currently set. Please use 'opam switch' to set or install a switch
[tezos] Initialised
 

どんな洞察も大歓迎です.

最後にノードが更新され、最新のブロックとすべてが実行されます.このメッセージについてもっと洞察を得たいと思っただけです.ありがとう.

We are currently receiving these kind of error messages when updating our tezos node.

Our upgrading procedure are like this: 1. We copy the main ~/tezos directory to a new directory called ~/tezos-new. 2. Call update command as shown below. 3. Stop node, change directory names, and start node again.

Using this command:

cd ~/tezos-new && eval $(opam env) && make clean && git checkout mainnet && git pull && make clean && make build-deps && eval $(opam env) && make && cd ~

We get errors like this:

[ERROR] No switch is currently set. Please use 'opam switch' to set or install a switch
make: dune: Command not found
Makefile:118: recipe for target 'clean' failed
make: [clean] Error 127 (ignored)
make[1]: Entering directory '/home/tezos/tezos-new/docs'
make[1]: Leaving directory '/home/tezos/tezos-new/docs'
Already on 'mainnet'
Your branch is up to date with 'origin/mainnet'.
Already up to date.
[ERROR] No switch is currently set. Please use 'opam switch' to set or install a switch
make: dune: Command not found
Makefile:118: recipe for target 'clean' failed
make: [clean] Error 127 (ignored)
make[1]: Entering directory '/home/tezos/tezos-new/docs'
make[1]: Leaving directory '/home/tezos/tezos-new/docs'
[ERROR] No switch is currently set. Please use 'opam switch' to set or install a switch
[tezos] Initialised

Any insight is much appreciated.

In the end the node is updated, and is running latest block and everything. Just wanted to get more insight into this message. Thanks.