# Error e0502a: Cannot upload project Eroll Cloud. A file contains special characters **URL:** \ **Category:** PIX4Dmapper Questions/Troubleshooting\ **Created:** [February 9, 2018, 4:53pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977 "2018-02-09T16:53:02Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Mike\_Solitro](https://avatars.discourse-cdn.com/v4/letter/m/8797f3/32.png) [@Mike\_Solitro](https://community.pix4d.com/u/Mike_Solitro)\ **Post date:** [February 9, 2018, 4:53pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/1 "2018-02-09T16:53:02Z")
I am trying to upload a project to be processed on the cloud to take advantage of some of the tools offerred. I have a site that was flown with our eBee and it is about 2400 images. After going through and marking my GCP’s and then trying to upload the project to the cloud I get the above error and nothing happens. Please Help! ---
**Author:** ![Holden\_Greene](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/holden_greene/32/425_2.png) [@Holden\_Greene](https://community.pix4d.com/u/Holden_Greene)\ **Post date:** [February 12, 2018, 10:51pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/2 "2018-02-12T22:51:06Z")
Thanks for reaching out to Pix4D support. This issue is usually related to special characters in the project directory. Special characters are things that are not usually found in the North American alphabet. Things like accents or other symbols are usually the cause. Can you confirm that the directory for your project and images do not have any of these characters?  ---
**Author:** ![pix4d2](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pix4d2/32/645_2.png) [@pix4d2](https://community.pix4d.com/u/pix4d2)\ **Post date:** [September 12, 2019, 4:09pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/3 "2019-09-12T16:09:36Z")
I’m having the same problem. Files are in D:\DSCI\Documents\pix4d\YM Photos are in D:\DSCI\Documents\pix4d\YM\Photos It would be great if the error message would say what file it’s having a problem with. Other projects have worked fine, it’s just this one that won’t upload. ---
**Author:** ![Kapil\_Khanal](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/kapil_khanal/32/304_2.png) [@Kapil\_Khanal](https://community.pix4d.com/u/Kapil_Khanal)\ **Post date:** [September 20, 2019, 8:39pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/4 "2019-09-20T20:39:46Z")
Thanks for reaching out to Pix4D support. This issue is usually related to special characters in the project directory as @Holden_Greene said. Can you try moving the project to the main directory and try uploading once again. If this doesn’t solve the issue, can you create the support ticket? ---
**Author:** ![sbhgurun.g](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/sbhgurun.g/32/2318_2.png) [@sbhgurun.g](https://community.pix4d.com/u/sbhgurun.g)\ **Post date:** [July 7, 2020, 4:46pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/5 "2020-07-07T16:46:07Z")
I tried to upload project file with marking GCPs .The upload got 60% success then I got following message: Error uploading file with key user-65c08e6d-b490-4750-a957-8eeb323d915c/project-706592/images/dji\_9 (510).JPG What was the problem? ---
**Author:** ![Alice\_Bonfiglio](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/alice_bonfiglio/32/291_2.png) [@Alice\_Bonfiglio](https://community.pix4d.com/u/Alice_Bonfiglio)\ **Post date:** [July 14, 2020, 7:49am UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/6 "2020-07-14T07:49:51Z")
Hi @sbhgurun.g, Could you share here the log file of the project you tried to upload to Pix4Dcloud? ---
**Author:** ![sbhgurun.g](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/sbhgurun.g/32/2318_2.png) [@sbhgurun.g](https://community.pix4d.com/u/sbhgurun.g)\ **Post date:** [July 14, 2020, 2:24pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/7 "2020-07-14T14:24:04Z")
[Mvu\_core\_area.log](https://community.pix4d.com/uploads/short-url/3KllRHsm6HN6K92KUKSm5II4kkz.log) (1.1 MB) This is log file.I have screenshot as well. ![error](https://global.discourse-cdn.com/pix4d/original/2X/5/534c06b2a5f8676f34205b5a94299972c5b5f0b2.jpeg) ---
**Author:** ![Alice\_Bonfiglio](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/alice_bonfiglio/32/291_2.png) [@Alice\_Bonfiglio](https://community.pix4d.com/u/Alice_Bonfiglio)\ **Post date:** [July 21, 2020, 1:54pm UTC](https://community.pix4d.com/t/error-e0502a-cannot-upload-project-eroll-cloud-a-file-contains-special-characters/5977/8 "2020-07-21T13:54:15Z")
Hi @sbhgurun.g, do you have a valid license to upload to Pix4Dcloud? Can you share your license key here? Could you check that you have enough Cloud allowance to upload the project? In addition, you are trying to upload a project with 3973 images, which might really be pushing the limits of the app.