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I keep getting missing method exceptions when using VS2019.

I have a solution called DailyAnalytics. This references DLLs for Analytics_Product1, Analytics_Product2, etc. These in turn reference a DLL called Utilities (all of these DLLs are on my machine). The methods which show as missing when running DailyAnalytics are indeed in Utilities - in fact, I can run Analytics_Product1 (etc) from another solution with no errors, but when calling from DailyAnalytics, the missing method exceptions are thrown.

I have tried: 1) cleaning and rebuilding Utilities; 2) cleaning and rebuilding Analytics_Product1 (etc); 3) removing references in Analytics_Product1 (etc) to Utilities and re-adding them; and 4) removing references in DailyAnalytics to Analytics_Product1 (etc) and re-adding them.

None of the above has worked.

Actual error messages are of the form "System.MissingMethodException: Method not found: 'Utilities.AnalyticsFunctions.SomeMethod()' at AnalysisProduct1()"

user11405759
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  • Silly question, but do you have to correct version of these libraries/DLLs? – computercarguy Jul 25 '19 at 17:36
  • Are the dlls installed in the GAC? If not, are they copy local? – Nikki9696 Jul 25 '19 at 19:35
  • 1. After restarting the PC, I no long get missing method exceptions for the Utilities methods - but instead get the same error for two calls to a different method (in a Statistics library)! And I can still run Analytics_Product1 (etc) from another solution with no issues. 2. I used gacutil.exe and typed gacutil -l [nameOfLibrary].txt which returned Number of items [in GAC] = 0 – user11405759 Jul 26 '19 at 14:58

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