Xcode 13 beta: "xcrun: error: Failed to locate 'instruments'"

Question

Please note , I'm looking for /Applications/Xcode.app/Contents/Developer/usr/bin/instruments util (lower-case), not the Instruments app which can be found in Xcode.app/Contents/Applications .

---

I have both Xcode12 and Xcode13-beta-5 on my computer. When run xcrun instruments -w <device id> , Xcode13 says xcrun: error: Failed to locate 'instruments' .

---

Locating the "instruments" in Xcode12:

olia@Olhas-MacBook-Pro % ls /Applications/Xcode.app/Contents/Developer/usr/bin/*instruments* 

# output ✅
/Applications/Xcode.app/Contents/Developer/usr/bin/instruments

Locating the "instruments" in Xcode13:

olia@Olhas-MacBook-Pro % ls /Applications/Xcode-beta.app/Contents/Developer/usr/bin/*instruments* 

# output ❌      
zsh: no matches found: /Applications/Xcode-beta.app/Contents/Developer/usr/bin/*instruments*   

Here, Xcode-beta.app is Xcode13, and Xcode.app is Xcode12.

Answer 1

There's no "instruments" util because it was deprecated in Xcode12 , and in Xcode13 it seems to be removed.

Apple recommends using xcrun xctrace instead of xcrun instruments in Xcode12. But as command xcrun instruments -w is for pre-launching Simulator, xctrace doesn't apply there.

We can run smth like

open -a Simulator.app --args -CurrentDeviceUDID <device id>

Answer 2

哈哈~，我把 Xcode 的仪器复制到 Xcode13 的 /Applications/Xcode.app/Contents/Developer/usr/bin/ ，然后运行 ​​react-native run-ios 成功。

Answer 3

For me I needed to upgrade react-native using:

yarn upgrade react-native