Finn Harps have said they are "surprised and disappointed" after missing out on a sport capital grant this week for their new stadium from the government.
Over €1m has already been spent on the Donegal Community Stadium Project.
Minister for Sport Shane Ross confirmed on Friday that a total of €77.4m has been dished out to 25 individual projects this year but Harps were omitted.
Plans for the new stadium in Stranorlar have been ongoing for over a decade, with work stalling in 2014 because of the recession.
It was restarted in 2018 and it was expected further funding would arrive to support what would be a €12m project in total.
In a statement, Harps said: "Finn Harps wish to express our disappointment at the exclusion of the Donegal Community Stadium Project from the funding approvals announced by the Dept. of Sport in recent days.
"The project had previously been approved by the Department of Sport, and commenced on site, with substantial work carried out.
"However the Department were unable to continue funding during the recession and work ceased.
"In 2017, given the original commitment to the project and the fact that significant funding was already incurred, the Department proposed a new model to deliver the project, and the club agreed to same.
"Since then the club have implemented what has been required in line with the new model proposed, and received a Department allocation in respect of same last year.
"The club understood that final funding approval was imminent to complete the main stand, pitch floodlights and ancillary facilities, and is surprised and disappointed that the project has not been included at this time.
"The project is 'shovel ready', with detailed design, bill of quantities, planning permission etc all in place.
"The Club welcomes that fact that the Department have already committed and spent over €1m on the project, however, we are concerned that further delays are only going to result in increased costs, and the structures already in place on site will deteriorate."
Harps concluded by saying they cannot deliver a new stadium "without the support and approval of the Department of Sport".
They added: "We have not yet had any formal communication from the Department, but we understand that this will be forthcoming within the coming week or two.
"The club will be following up with the Department to determine when the commitments already given to the project will be implemented."
The Sportsground, home of Connacht Rugby, has received a €10m government boost for development, €10m will go towards revamping Leinster Rugby's home ground the RDS, while Meath GAA have been awarded €6.2m to modernise Páirc Tailteann as part of the Large Scale Sport Infrastructure Fund.
Just over €2m has been allotted to help the construction of the Munster Centre of Excellence in Glanmire, Co Cork.
The project is a partnership agreement between the FAI, Cork City FC trust FORAS, and Cork County Council.