I have the same problem, cleaning or building with new build system etc - nothing helps.
The problem is present in the newest iOS 14 beta 4 and in the newest build of Xcode.
SendProcessControlEvent:toPid: encountered an error: Error Domain=com.apple.dt.deviceprocesscontrolservice Code=8 "Failed to show Widget '*' error: Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (*)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (*)}." UserInfo={NSLocalizedDescription=Failed to show Widget '*' error: Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (*)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (*)}., NSUnderlyingError=0x10f953420 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (*)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (*)}}}
Domain: DTXMessage
Code: 1
System Information
macOS Version 10.15.6 (Build 19G73)
Xcode 12.0 (17189.4) BlockQuote Someone can help?