fastlane: Test target x encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted)

Bad news, my only solution was to completely re-install the OSX. That worked. I’m all set

Update: It’s back. Lord help us.

I also ran into this issue with Xcode 8.3.2 using Cocoapods and the latest fastlane. Following these notes helped solving the issue! All I had to do is add $(FRAMEWORK_SEARCH_PATHS) to the LD_RUNPATH_SEARCH_PATHS of the test targets

Actually this was not at all related to the discussion here. Same symptom - I saw Error Domain=IDETestOperationsObserverErrorDomain but as it turned out, this was from a crash right on launch in the application stack that we were able to get fixed. Unfortunately, I assumed this was fastlane - since I had just upgraded to the new release. Always check the device log!

I had this issue occur, but mine might be a little different. I’ll list my issue and solution in case it might help you out. I had a test bundle with empty test. Whenever scan ran on it, it would just timeout there.

• What i did was disable the bundle.
• Before running any test, i would boot up the simulator first, then wait to give it time to load.
• Then clean out any previously install app on it. Then run scan.

What’s the status on this ongoing issue? Lots of people still seeing this issue I guess (including me).

In my case, specifying iPhone and iOS version helped. (make sure that simulator with chosen version is installed)

fastlane scan --scheme "integration" --device "iPhone 7 (10.2)" --clean

This is happening to me as well. It seems to start happening right after I updated to Swift 4 / Xcode 9. Not sure if running multiple simulators affects it or not. I am using TeamCity on a Mac mini macOS 10.12.

Using fastlane v2.59.0 Here is the output:

[13:36:19]	[Step 1/1] 2017-09-29 13:36:13.378 xcodebuild[50763:4063673] Error Domain=IDETestOperationsObserverErrorDomain Code=6 "Early unexpected exit, operation never finished bootstrapping - no restart will be attempted" UserInfo={NSLocalizedDescription=Early unexpected exit, operation never finished bootstrapping - no restart will be attempted}
[13:36:19]	[Step 1/1]
[13:36:19]	[Step 1/1] Testing failed:
[13:36:19]	[Step 1/1] Early unexpected exit, operation never finished bootstrapping - no restart will be attempted
[13:36:19]	[Step 1/1] ** TEST FAILED **
[13:36:19]	[Step 1/1] [13:36:19]: Exit status: 65```

This seems to be happening on Bitrise for my team as well. It’s fairly random (although some days it’s around 50% of the time for PRs), and most of the time if I re-run the build, I can get it to run successfully.

Stack: Xcode 8.3.x, on macOS 10.12 (Sierra) (full details)

Log output:

 Running script '[CP] Embed Pods Frameworks'
▸ Running script '[CP] Copy Pods Resources'
▸ Touching MyAppTests.xctest
▸ Signing /Users/vagrant/Library/Developer/Xcode/DerivedData/MyApp-goyjtmivxnatifgxjovyfpyikszp/Build/Products/Debug-iphonesimulator/MyAppTests.xctest
2017-09-25 12:08:27.500 xcodebuild[2493:12978] Error Domain=IDETestOperationsObserverErrorDomain Code=6 "Early unexpected exit, operation never finished bootstrapping - no restart will be attempted" UserInfo={NSLocalizedDescription=Early unexpected exit, operation never finished bootstrapping - no restart will be attempted}
Testing failed:
Test target MyAppTests encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted)
** TEST FAILED **
[12:08:27]: Exit status: 65

Proposed fixed don’t seem to work. Is this still a problem for someone?

I recently had the problem where a number of builds failed because the simulator could not be communicated with.

I started running this script before using fastlane scan - to kill the simulator and wipe it clean. It has eliminated much of these errors. It still happens occasionally but much less frequently.

echo "Shutting down the simulator app"
osascript -e 'quit app "Simulator"'

echo "Making sure ALL simulators are shutdown"
xcrun simctl list | grep Booted | grep -e "[0-9A-F\-]\{36\}" -o | xargs xcrun simctl shutdown

echo "Erasing apps from all simulators and resetting back to clean state"
xcrun simctl erase all

echo "Killing com.apple.CoreSimulator.CoreSimulatorService"
killall -9 com.apple.CoreSimulator.CoreSimulatorService

Hallo,

i got the same error now on two machines (10.11 and 10.10). First it worked correctly. I only use snapshot.

Resetting & Deleting of the simulators does not fix the the problem.

Also having this issue on Travis after updating osx_image to Xcode 9.1 Everything was working fine on Xcode 8.2 image.

EDIT: I have made 2 changes and the build has finally passed.

1. I applied @kohol’s answer to my project by addeding device: "iPhone 7 (10.2)" to scan options in my Fastfile.
2. I also moved ENV["FASTLANE_EXPLICIT_OPEN_SIMULATOR"] = "2" from my test lane to before_all lane.

Any suggestions to get this issue fixed? We are receiving the following error on every CI run. Had Xcode 8.3.3, switched to Xcode 9 and swift4 but then reverted to old xcode is when we started seeing the following issue: any pointers?

xcodebuild[79910:1503189] Error Domain=IDETestOperationsObserverErrorDomain Code=6 “Early unexpected exit, operation never finished bootstrapping - no restart will be attempted” UserInfo={NSLocalizedDescription=Early unexpected exit, operation never finished bootstrapping - no restart will be attempted}

Testing failed: Test target xx encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted) ** TEST FAILED **

I tend to have the simulator up and running first before any test is run. Can you try to put this in your fastfile:: ENV[“FASTLANE_EXPLICIT_OPEN_SIMULATOR”] = “2”

I’ve seen this error and tracked it down to different problems each time (none with Fastlane):

• A crash when the app initially starts up on the simulator; this is actually a great error to find if you running tests on a PR - will prevent developers from committing this crash.
• The app could not be loaded because a library was missing (example: Library not loaded: @rpath/libswiftXCTest.dylib). I had to set Runpath to include @loader_path/Frameworks and then it was able to load this library.
• A communication channel error: Connection peer refused channel request for “dtxproxy:XCTestManager_IDEInterface:XCTestManager_DaemonConnectionInterface”; channel canceled. I am not sure what the solution to this one is - however I have seen something like this on my own computer running tests on the simulator - occasionally it cannot connect. Restarting the simulator or even my computer itself will fix it. Would love to know a better way.

I had this and fixed it by deleting an empty test target as mentioned by someone above.

It just started happening to me on my Jenkins build slaves tonight. After I upgraded to fastlane 2.22.0.

On my own dev computer fastlane scan runs my tests just fine.

Hello to all.

I got the same error with fastlane scan. I spent many hours before found the problem. Maybe someone will get the same.

The real bug is not the Early unexpected exit, operation never finished bootstrapping - no restart will be attempted. Before this message I found in logs the another message, more important: Cannot launch simulated executable: no file found at /Users/me/Library/Developer/Xcode/DerivedData/MyApp-gltkodapbbvlitfeuqbhsjilahgz/Build/Intermediates/CodeCoverage/Products/Debug-iphonesimulator/MyApp.app

Here is a full example:

13:44:14 /Users/me/Library/Developer/Xcode/DerivedData/MyApp-gltkodapbbvlitfeuqbhsjilahgz/Logs/Test/9F2E8733-A6AE-4AD3-8BE6-D4BB5A70D6E8/Session-MyAppTests-2017-03-06_154355-xpXd2q.log

13:44:14 2017-03-06 15:43:55.242 xcodebuild[20233:269415] Error Domain=IDEFoundationErrorDomain Code=1 "Cannot launch simulated executable: no file found at /Users/me/Library/Developer/Xcode/DerivedData/MyApp-gltkodapbbvlitfeuqbhsjilahgz/Build/Intermediates/CodeCoverage/Products/Debug-iphonesimulator/MyApp.app" UserInfo={NSLocalizedDescription=Cannot launch simulated executable: no file found at /Users/me/Library/Developer/Xcode/DerivedData/MyApp-gltkodapbbvlitfeuqbhsjilahgz/Build/Intermediates/CodeCoverage/Products/Debug-iphonesimulator/MyApp.app}

13:44:14 2017-03-06 15:43:55.242 xcodebuild[20233:269415] Error Domain=IDETestOperationsObserverErrorDomain Code=5 "Early unexpected exit, operation never finished bootstrapping - no restart will be attempted" UserInfo={NSLocalizedDescription=Early unexpected exit, operation never finished bootstrapping - no restart will be attempted}
13:44:14 ** TEST EXECUTE FAILED **

When I looked into the Session-MyAppTests-2017-03-06_154355-xpXd2q.log I found the launch command, something like this:

/Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -workspace MyApp.xcworkspace -scheme MyApp -destination "platform=iOS Simulator,id=FA7DF862-A049-47C5-93B7-070483AA7B33" -derivedDataPath /Users/me/Library/Developer/Xcode/DerivedData/MyApp-eleawdbfycuswrcieexbehcqpbef clean test-without-building

Then I realized that something strange in the end of string: test-without-building — this is the real problem! But why? Because my .env config contained incorrect value of the SCAN_TEST_WITHOUT_BUILDING=0 environment variable. The strangest fix that I could imagine… ta-da-a: SCAN_TEST_WITHOUT_BUILDING=false. Yep, zero value is not equal false in Ruby.