MetaTrader 4 T4T can't open expert file

External question — Stack Overflow Stack Exchange Author: Owen U Original post: https://stackoverflow.com/questions/79943607 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I'm trying to automate backtests with t4Metatrader, but when I run my command C:\\MT4_Instance_1\\terminal.exe" /portable "C:\\MT4_Instance_1\\config\\backtest.ini it opens and tries to run the test, but then shows these errors: Cannot open file'C:\MT4_Instance_1\MQL4\Experts\ea.ex4' [123]3 17:33:57.145 Tester: cannot start with configuration file because expert ea not loaded3 17:39:11.606 Cannot open file 'C:\MT4_Instance_1\MQL4\Experts\Moving Average.ex4' [123]3 17:39:11.606 Tester: cannot start with configuration file because expert Moving Average not loaded I triple checked and those files ARE in the folder, so I'm kind of at a loss :( It's for a school project, and I would love to know if anyone has run into this issue, and solved it. Here is the backtest.ini (with some passwords removed of course): [Common] Login=loginusernamegoeshere Password=passwordgoeshere Server=T4Trade-Demo1 EnableNews=false [Tester] TestExpert=ea TestSymbol=GBPUSD TestPeriod=1 TestModel=0 TestSpread=20 TestOptimization=false TestDateEnable=true TestFromDate=2024.01.01 TestToDate=2024.12.31 TestDeposit=10000 TestCurrency=USD TestLeverage=100 TestReport=tester\files\report_test-008 TestReplaceReport=true TestShutdownTerminal=true TestVisualEnable=false TestRecalculate=false TestAutoStart=1 TestGenTicks=1 SkipInvalidTicks=true

External answer — Stack Overflow Stack Exchange Author: Owen U Original post: https://stackoverflow.com/a/79944080 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. My Python code was adding new lines to the backtest.ini file. I compared it to a backtest.ini file that we knew worked and saw the difference (it suppose to have an CR and LF at the end in Notepad++).