Lightswitch HTML and sharepoint (Sideloading of apps is not enabled) error - sharepoint

I have recently purchased office 365, and thought id have a go at linking a lightswitch HTML 2015 project to it, and ive gotten as far as this error:
Error occurred in deployment step: 'Install app for SharePoint':
Sideloading of apps is not enabled on this site
I have been researching this for like an hour now and everything I have tried has failed... has any one else come accross this and can help me fix this issue, or at least point me in the right direction of things i can try to solve this

If you didn't base the site on the developer template, you will need to activate the developer feature, see http://lekman.codeplex.com/releases/view/98505 for details on how to do so.

We have to give developer site link here or we need to activate sideloading feature .

Related

"Communication with the SharePoint server is Cancelled" error when building SharePoint hosted addin

Last month, I had a Sharepoint addin installed into a clients Project Web Access (pwa) server working quite well.
This month, when I try to compile and run a new version of that same project in Visual Studio, I'm getting a popup asking "Do you want to switch the project to Offline mode?" and if I say 'No', I get a "Communication with the SharePoint server is Cancelled" error when uploading my project.
There have been no configuration changes. The only code changes were to a .JS file (and we reverted those changes, just in case).
There may have been updates to Visual Studio during that time.
I have...
Ensured that the server name is correct and unchanged.
Ensured that the 'Server Connection' property for the project is 'Online'
I can't find any useful diagnostic information anywhere.
Does anyone have any suggestions about how to resolve this, or at least how to get some diagnostic information about why it's happening?
It appears that Office365/SharePoint Online has new defaults that prevent access from external applications ( I was also unable to connect via PowerShell scripting using my Sharepoint Online credentials).
I updated the settings under Policies|Access Control in the Sharepoint Online admin console to allow connection, and now I can connect from PowerShell, and I've got a different issue in Visual Studio.
While I still don't have diagnostic information about communication problems, I've managed to get a little further.

Unable to deploy sandbox solution on SharePoint online

I have been trying to deploy a sandbox solution on SharePoint online but unable to deploy it. The technique I am following is to develop a sandbox solution on SharePoint 2013 on premises and extract .wsp file which I take to SharePoint online and upload this .wsp in Site Settings --> Web Designer Galleries --> Solution. But when I upload the solution it gives me the error below:
enter image description here
After googling this issue I came across this article http://www.sharepointnutsandbolts.com/2016/08/sandbox-code-disabled-in-Office-365.html which says that the activation of sandboxed solution is disabled last couple of weeks before.
After more googling I found the solution of this issue from an article which asks me to set Include Assembly in Package property of my solution to False. This resolves the above activation of sandboxed solution issue but when I go to my page and try to add the web part it gives me this error “$Resources:core,ImportErrorMessage;”.
I tried a lot and invested my 2 days with no solution. Your support will be appreciated.
Thank You,
You are right that the activation of sandbox solutions in O65 has been disabled. Microsoft has publicly announced the same with different articles.
http://dev.office.com/blogs/removing-code-based-sandbox-solutions-in-sharepoint-online
https://blogs.msdn.microsoft.com/sharepointdev/2014/01/14/deprecation-of-custom-code-in-sandboxed-solutions/
Try the following and check if retracting and deploying the solution works for you.
Open Visual Studio -> Build -> Select 'Retract'

Sharepoint error when deploying feature from Visual Studio 2010

I get an error when I try to deploy the feature which just creates a new site collection in sharepoint even when build is successful.
Error message:
Error occurred in deployment step 'Add Solution': Feature definition with Id eeebb27c-ec18-4f87-8be6-e29c61fb53d5 failed validation, file 'SPFeature_Feature\Feature.xml':
Feature 'eeebb27c-ec18-4f87-8be6-e29c61fb53d5' is WebApplication-scoped, and cannot be added to the Site.
Can someone point me in the right direction?
I would suggest a fix to you. Click on Features folder of the solution in Visual Studio. Check the scope of the FeatureX.feature file and change it to Site level.
Hope this helps :)

Error when trying to deploy webpart

I've been searching on Google for a resolution to this problem, but cannot find one that matches yet.
I'm trying to deploy a simple "Hello World" web part to SharePoint using Visual Studios 2010.
I'm getting an error when I hit F5: "Error occurred in deployment step 'Retract Solution': Cannot connect to the SharePoint site: http://example.com/. Make sure that this is a valid URL and the SharePoint site is running on the local computer. If you moved this project to a new computer or if the URL of the SharePoint site has changed since you created the project, update the Site URL property of the project."
Ok, I have done a lot of searching and I'll tell you what I've tried so far. I have full admin rights on the farm, full rights to both databases. I made sure the webpart URL property matches the site property listed in Central Admin as well.
If anyone has any advice or insight it would be greatly appreciated. Thank you in advance.
P.S. (Edit) Also, the farm I'm deploying to and visual studio are on the same machine? would that cause it?
Check the properties of your project in Visual Studio. Click on project node in solution explorer and press F4, then check there 'Site URL' property. It should contains one of the following
http://[your machine name][:port]/[site collection or web relative URL]
http://localhost[:port]/[site collection or web relative URL]
http://[your machine IP address][:port]/[site collection or web relative URL]
Note that Visual Studio must be installed on that machine which is your Web Front End or Application server.
If you got some errors with solution retracting try first deactivate and delete it via Central Admin. Then try to make some deploy-retract checking cycle in Visual Studio. If you still would get errors please post here the log from Visual Studio Output window (Ctrl+W, O).
I was able to go ahead and deploy the web part using STSADM commands from tutorials that you guys referenced in this topic, thanks so much for that.
It seems the problem I'm having involves multi-server install, and I don't think there is a quick work around yet.
Thank you all for the responses!
Follow below mentioned steps to debug this issue :
1) Browse the URL in IE on your server where you have hosted the http://mysite.com site.
2) If you are able to browse then try deploying this web part on another site by giving new site URL in project properties in Visual studio.
3) To deploy a solution onto a site you must have visual studio on the same computer where you hosting the site.
4) Try deploying WSP through stsadm, Click here to see the details. To create WSP in Visual studio right click on project -> click on 'Package' -> once its complete right click on project -> click on 'Open in windows explorer' -> open 'bin' directory -> open 'Debug' directory -> you shall see a file named as your project name & extension would be .wsp
5) If anything above doesn't help put down your deploying steps.
Please do the following
Can you first verify the Site Collection you are trying to deploy is working or not
Open the properties of the SharePoint Project >Properties(F4)> Build Tab and see that the platform has been set to Active(Any CPU).
Delete the Solution from Central Administration and then try to deploy the solution once again.
If you still have the same problem then attach the log file from the SharePoint logs.
Thanks,
-Santosh
Have you mention the Site URL property in Visual Studio Sharepoint project?. you can open using (ctrl+shift+p) for Window of Properties then Check project Properties and make sure Site
URL is the Web application where you want solution to be deployed.
might be helpful this link: http://www.dev4side.com/community/blog/2010/2/28/error-occurred-in-deployment-step-%27recycle-iis-application-pool%27.aspx

SharePoint Foundation on Windows 7 Home Premium

I've installed SharePoint Foundation on Windows 7 Home Premium using the tutorial at:
http://msdn.microsoft.com/en-us/library/ee554869%28office.14%29.aspx#50
Everything went well except for the last step when I actually try to load either the site or Central Administration. Instead of a Foundation website, only a blank page appears.
I tried without success the suggested solution to change IIS -> Authentication -> Basic Authentication to Enabled.
After this change it was necessary to enter a username and password when trying to access a Foundation site. Unfortunately, after entering correct data a "Server Not Found" message appeared and I was not able to proceed.
Any ideas?
Thank you for your time,
Ben
1st step of troubleshooting this is to take SharePoint out of the equation. Setup a new web application in IIS, put in a simple 'hello world' type static html page and try and load that. If you can't then the problem is IIS/networking and not SharePoint.
For what it's worth, I've found a way to install SharePoint Foundation 2010 on Windows 7 Home Premium and solve the Windows Authentication issue (you CAN actually enable it on Home Premium as well - it's just a manual process, that's all).
You can find the steps I followed on my blog at http://www.rl-soft.com/en/blog/Lists/Posts/Post.aspx?ID=21
Hope this helps a few folks!
Raphael.

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