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--- frequently_asked_questions [2017/07/20 11:00]
tickstory [What are the limitations back-testing with tick data?]
+++ frequently_asked_questions [2023/09/14 22:51] (current)
tickstory
@@ Line 19: / Line 19: @@
    * [[frequently_asked_questions#tradingsystemandbrokerdatadifference|Why is my trading system behaving differently when using Tickstory data (as opposed to MT4 broker data)?]]
    * [[frequently_asked_questions#issuewithtickstory|I believe there's a bug in Tickstory because my EA is not working as I expect.]]
+===== Common Metatrader Errors =====
+   * [[frequently_asked_questions#openerror5|FXT 'Cannot open error [5]']]
+===== Need further assistance? =====
+Please join our online [[https://tickstory.com/forum|Support Forum]] for further discussion and assistance.  Don't forget that you can search the forum for common errors or questions (eg. "DAX" or "cannot open").  The forum is an invaluable and quick resource to answering common questions.
+=====  =====
 -----
@@ Line 35: / Line 45: @@
    - On slower machines, it may take some time for time for MT4 to to load. In this case, Tickstory does not wait any longer and puts up this error. Once MT4 has finished starting, you can press the launch button again and it should no longer display this error.
-<note important>Note: Users of the 'Lite' (free) version of Tickstory will need to revert their Metatrader version to Build 765 or earlier, otherwise you will receive this error during the launch process.</note>
+<note important>Note: Please make sure you have updated to the most recent version of Tickstory to ensure your Metatrader 4 Build version is supported.  In the event Tickstory does not currently support the most recent MT4 version, you will need to roll-back your terminal to the last supported version until an update is available (as advised by our Support team).</note>
+<note important>
+If you continue to have difficulties, make sure you uninstall any third-party software that augments or alters Metatrader behavior as it may be incompatible with Tickstory.
+</note>
 -----
@@ Line 46: / Line 60: @@
 !!!This problem is typically due MT4 not utilising your exported data correctly. Check the following:
    * Ensure you have launched your MT4 terminal via the Tickstory '[[launching_mt4|Launch MT4]]' option (press F8 when in Tickstory to do this).
+   * Ensure you have selected the "//Every tick//" modelling method in the Metatrader 4 Strategy Tester.
    * Ensure you have exported your MT4 database to the [[configuring_tickstory|correct location]] (make sure you have selected the correct server if there are multiple selections). For example, if you have a "Demo" and "Real" account, make sure you are exporting to the same one you are using for back-testing, otherwise the data will not be visible to MT4.
    * If applicable, ensure you have correctly [[customising_mt4_export_settings|mapped the Tickstory symbol name]] (eg. EURUSD) to the MT4 equivalent symbol name (eg. EURUSDm, fcmEURUSD, etc). (More help is also available in our [[https://tickstory.com/forum/search.php?keywords=maps+to&terms=all&author=&sc=1&sf=all|forum]]).
@@ Line 152: / Line 167: @@
    - **Known MT4 issue**: In some cases there are known issues with the Strategy Tester. The Tickstory & MT4 forums are often a good place to read about issues that people have come across. Examples of such issues include the "4GB FXT limtation" which limits the maximum period you can test in the Strategy Tester at one time. Other similar issues do exist, and often will have some workaround which will allow you to continue your back-testing with this issue in mind.
    - **Bug in Tickstory**: In the event you believe there is an issue with Tickstory, the implication is that Tickstory has exported incorrect data in some way. For example, perhaps you believe the "Open" price of a bar is incorrect. In this event, please clearly demonstrate this with screenshots of the charts and/or Historical Data Center so we can investigate further. Please do not just provide us with a copy of your EA and ask us "What's wrong?", as we are unlikely to be able to assist since understanding your code and further debugging could take many hours of our time. Instead, distill as much information as you can that allows us to work with the data itself. If, for example, your moving average indicator is giving you the incorrect value, this should easily be demonstrable by showing the incorrect data points versus what they should be. This sort of targeted information is invaluable for us to investigate and identify any issues as soon as possible.
+----
+{{anchor:openerror5:}}
+==== FXT - Cannot open error [5] ====
+If this error occurs, please check the following:
+  - Make sure you have the correct MT4 Settings in your FXT file by using the method described [[http://tickstory.com/forum/viewtopic.php?f=2&t=809|here]].  This includes making sure that your "Map to" symbol is *exactly* as it appears in MT4 - including the correct case.
+  - Make sure you have exported more than 100 bars for the time-frame you are working in.  For example, if you are working in the daily time-frame, export more than 100 days of data.  If you are using the 1 hour time-frame, make sure you have exported at least 100 hours worth of data (i.e. 5+ days) and so forth.
+  - While trouble-shooting this error, make sure you don't have more than 4GB FXT files (you may try go beyond this once you have resolved the issue, but do note that MT4 does not always handle > 4GB FXTs very well).
+  - An invalid field somewhere such as a comma instead of a decimal place. See [[https://tickstory.com/forum/viewtopic.php?f=2&t=809&p=5381|here]] for more discussion on this.
+For more discussion on this error, please [[https://tickstory.com/forum/viewtopic.php?f=4&t=980|see our support forum]].

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