Why meet the error "Incompatible child element 'statistics' for 'kw', when ExecutionResult for output.xml

Robot Framework
1

I used the RF method to generate log/report html, sometimes I met the following issue:
from robot.api import ExecutionResult
log_result = ExecutionResult(os.path.join(self.filepath, ‘report\output.xml’))

Reading XML source ‘E:\Project\autoTestClourneySemi_20221008\dist\report\output.xml’ failed: Incompatible child element ‘statistics’ for ‘kw’.

I found the output.xml generated with wrong format like that:

<?xml version="1.0" encoding="UTF-8"?> 1sec Pauses the test executed for the given time. **** **** **All Tests** **** **** **case1** **suite1** **test01** **testFor** **testSum** **** **** **suites** **suites.TestSuite 2** **** **** Error in file 'F:\dist\suites\TestSuite_2.robot' on line 6: Library '..\..\execution\Local\common\sum.py' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 7: Variable file '..\..\execution\Lib\Variables.py' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 8: Resource file '..\resources\source1.robot' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 9: Resource file '..\resources\source2.txt' does not exist. str', 'sss'] ${list_1} 2 Verifies that the length of the given item is correct. ${list_1}[0] 3 Verifies that the length of the given item is correct. ${d} 1 Returns the given values which can then be assigned to a variables. ${d} = 1 case1 suite1 test Logs the given message with the given level. ${uname} zs Returns the given values which can then be assigned to a variables. ${uname} = zs ${age} 33 Returns the given values which can then be assigned to a variables. ${age} = 33 ${uname_type} type($uname) Evaluates the given expression in Python and returns the result. ${uname_type} = <class 'str'> ${age_type} type($age) Evaluates the given expression in Python and returns the result. ${age_type} = <class 'str'> ${age_to_int} int($age)+20 Evaluates the given expression in Python and returns the result. ${age_to_int} = 53 ${age_to_int_type} type($age_to_int) Evaluates the given expression in Python and returns the result. ${age_to_int_type} = <class 'int'> ${ulist} zs ls ww Returns a list containing given items. ${ulist} = ['zs', 'ls', 'ww'] ${ulist} Logs the given message with the given level. @{agelist} 19 20 33 Returns a list containing given items. @{agelist} = [ 19 | 20 | 33 ] ${agelist} Logs the given message with the given level. Log @{agelist} Displays the given messages in the log file as keyword arguments. ${student} stu_name=zs stu_age=12 stu_class=chinese Creates and returns a dictionary based on the given ``items``. ${student} = {'stu_name': 'zs', 'stu_age': '12', 'stu_class': 'chinese'} ${student} Logs the given message with the given level. suite1 test01 for_ Logs the given message with the given level. ${num} 1 2 3 1 ${num} Logs the given message with the given level. 2 ${num} Logs the given message with the given level. 3 ${num} Logs the given message with the given level. for_in_range Logs the given message with the given level. ${target} 4 8 4 ${target} Logs the given message with the given level. 5 ${target} Logs the given message with the given level. 6 ${target} Logs the given message with the given level. 7 ${target} Logs the given message with the given level. suite1 testFor ${i} 1 5 1 ${i} ${j} 1 ${i}+1 1 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 1 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 2 ${i} ${j} 1 ${i}+1 1 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 2 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 2 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 4 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 3 ${i} ${j} 1 ${i}+1 1 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 3 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 2 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 6 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 3 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 9 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 4 ${i} ${j} 1 ${i}+1 1 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 4 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 2 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 8 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 3 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 12 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. 4 ${result} ${i}*${j} Evaluates the given expression in Python and returns the result. ${result} = 16 ${i}*${j}=${result} Logs the given message with the given level. ${j} Logs the given message with the given level. suite1 testFor ${i} 1 5 1 ${j} 2 5 2 ${r} ${i} ${j} No keyword with name 'Sum' found. $r Logs the given message with the given level. suite1 testSum No keyword with name 'Sum' found. Test Suite1 1 All Tests case1 suite1 test01 testFor testSum suites suites.TestSuite 2 Error in file 'F:\dist\suites\TestSuite_2.robot' on line 6: Library '..\..\execution\Local\common\sum.py' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 7: Variable file '..\..\execution\Lib\Variables.py' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 8: Resource file '..\resources\source1.robot' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 9: Resource file '..\resources\source2.txt' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 6: Library '..\..\execution\Local\common\sum.py' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 7: Variable file '..\..\execution\Lib\Variables.py' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 8: Resource file '..\resources\source1.robot' does not exist. Error in file 'F:\dist\suites\TestSuite_2.robot' on line 9: Resource file '..\resources\source2.txt' does not exist.

The statistics section generated in the “kw” section in the beginning. This is wrong.
So I confused, in which situation, when I run the test cases and then generated the wrong “output.xml”.

2

No idea why but googling for similar issues all lead to Pabot - and at least one of those scenarios, person asking mentioned that there was version issues on his side…

3

Seems that multiple processes or possibly threads are writing to the same output.xml file. With this information alone it’s impossible for us to know why that happens.

4

It seems like that:
with open(os.path.join(self.report_path,‘templog.txt’), ‘w’) as stdout:
run(self.filepath, name=self.casename, test = test, outputdir = self.report_path, log=None, report = None,
stderr=stdout, stdout=stdout, loglevel = ‘TRACE’)

	time.sleep(0.3)
	resultfile = open(os.path.join(self.report_path,'output.xml'), "r")

After “run”, I tried to open ‘output.xml’ for other using.
Then I tried to give 0.3s sleep, it seems fine now.